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HTML

              
                h1 CSS LOADERS
p
	button Click for demo
.box .loader-01
	.loader-01
.box .loader-02
	.loader-02
.box .loader-03
	.loader-03
.box .loader-04
	.loader-04
.box .loader-05
	.loader-05
.box .loader-06
	.loader-06
.box .loader-07
	.loader-07
.box .loader-08
	.loader-08
.box .loader-09
	.loader-09
.box .loader-10
	.loader-10
.box .loader-11
	.loader-11
.box .loader-12
	.loader-12
.box .loader-13
	.loader-13
.box .loader-14
	.loader-14
.box .loader-15
	.loader-15
.box .loader-16
	.loader-16
.box .loader-17
	.loader-17
.box .loader-18
	.loader-18
.box .loader-19
	.loader-19
.box .loader-20
	.loader-20
.box .loader-21
	.loader-21
.box .loader-22
	.loader-22
.box .loader-23
	.loader-23
.box .loader-24
	.loader-24
.box .loader-25
	.loader-25
.box .loader-26
	.loader-26
.box .loader-27
	.loader-27
.box .loader-28
	.loader-28
.box .loader-29
	.loader-29
.box .loader-30
	.loader-30
.box .loader-31
	.loader-31
.box .loader-32
	.loader-32
.box .loader-33
	.loader-33
.box .loader-34
	.loader-34
.box .loader-35
	.loader-35
.box .loader-36
	.loader-36
.box .loader-37
	.loader-37
.box .loader-38
	.loader-38
.box .loader-39
	.loader-39
.box .loader-40
	.loader-40
.box .loader-41
	.loader-41
.box .loader-42
	.loader-42
.box .loader-43
	.loader-43
.box .loader-44
	.loader-44
.box .loader-45
	.loader-45
.box .loader-46
	.loader-46
.box .loader-47
	.loader-47
.box .loader-48
	.loader-48
.box .loader-49
	.loader-49
.box .loader-50
	.loader-50
.box .loader-51
	.loader-51
.box .loader-52
	.loader-52
.box .loader-53
	.loader-53
.box .loader-54
	.loader-54
.box .loader-55
	.loader-55
.box .loader-56
	.loader-56
.box .loader-57
	.loader-57
.box .loader-58
	.loader-58
.box .loader-59
	.loader-59
.box .loader-60
	.loader-60
.box .loader-61
	.loader-61
.box .loader-62
	.loader-62
.box .loader-63
	.loader-63
.box .loader-64
	.loader-64
.box .loader-65
	.loader-65
.box .loader-66
	.loader-66
.box .loader-67
	.loader-67
.box .loader-68
	.loader-68
.box .loader-69
	.loader-69
.box .loader-70
	.loader-70
.box .loader-71
	.loader-71
.box .loader-72
	.loader-72
.box .loader-73
	.loader-73
.box .loader-74
	.loader-74
.box .loader-75
	.loader-75
.box .loader-76
	.loader-76
.box .loader-77
	.loader-77
.box .loader-78
	.loader-78
.box .loader-79
	.loader-79
.box .loader-80
	.loader-80
.box .loader-81
	.loader-81
.box .loader-82
	.loader-82
.box .loader-83
	.loader-83
.box .loader-84
	.loader-84
.box .loader-85
	.loader-85
.box .loader-86
	.loader-86
.box .loader-87
	.loader-87
.box .loader-88
	.loader-88
.box .loader-89
	.loader-89
.box .loader-90
	.loader-90
.box .loader-91
	.loader-91
.box .loader-92
	.loader-92
.box .loader-93
	.loader-93
.box .loader-94
	.loader-94
.box .loader-95
	.loader-95
.box .loader-96
	.loader-96
.box .loader-97
	.loader-97
.box .loader-98
	.loader-98
.box .loader-99
	.loader-99
              
            
!

CSS

              
                body {
	//background: #323943;
	
  background: radial-gradient(ellipse farthest-corner at center bottom, #69d2fb 0%, #20438E 100%) center bottom / 100% fixed;
	text-align: center;
	box-sizing: border-box;
	font-family: sans-serif;
	color: rgba(255, 255, 255, .8);
	*,
	*:before,
	*:after {
		box-sizing: inherit;
	}
	&:hover > * {
		opacity: .5;
	}
}

.box {
	display: inline-block;
	width: 200px;
	height: 200px;
	border: 1px solid currentcolor;
	border-radius: 3px;
	font-size: 30px;
	padding: 1em;
	position: relative;
	margin-bottom: .25em;
	vertical-align: top;
	transition: .3s color, .3s border, .3s transform, .3s opacity;
	// &:not(:hover) {
	// 	[class*="loader-"] {
	// 		animation: none;
	// 		&:before, &:after {
	// 			animation: none;
	// 		}
	// 	}
	// }
	&:hover {
		color: #fff; //#d60b52;
		background-color: rgba(0,0,0,.1);
		font-size: 0;
		padding: 0;
		border-width: 3px;
		line-height: 200px;
		opacity: 1;
		transform: scale(1.2);
		z-index: 2;
		[class*="loader-"] {
			font-size: 70px;
			line-height: 200px;
		}
	}
}

button {
	display: inline-block;
	background: transparent;
	border: 2px solid currentcolor;
	color: white;
	padding: .5em 1em;
	border-radius: 5px;
	font-size: calc(16px + 2vw);
	
}

[class*="loader-"] {
	display: inline-block;
	width: 1em;
	height: 1em;
	color: inherit;
	vertical-align: middle;
	pointer-events: none;
}

.loader-01 {
	border: .2em dotted currentcolor;
	border-radius: 50%;
	animation: 1s loader-01 linear infinite;
}

@keyframes loader-01 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

////////////////////////////////////////
.loader-02 {
	border: .2em solid transparent;
	border-left-color: currentcolor;
	border-right-color: currentcolor;
	border-radius: 50%;
	animation: 1s loader-02 linear infinite;
}

@keyframes loader-02 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

/////////////////////////////////////
.loader-03 {
	border: .2em solid currentcolor;
	border-bottom-color: transparent;
	border-radius: 50%;
	animation: 1s loader-03 linear infinite;
	position: relative;
}

@keyframes loader-03 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

/////////////////////////////////////
.loader-04 {
	border: 1px solid currentcolor;
	border-radius: 50%;
	animation: 1s loader-04 linear infinite;
	position: relative;
	&:before {
		content: '';
		display: block;
		width: 0;
		height: 0;
		position: absolute;
		top: -.2em;
		left: 50%;
		border: .2em solid currentcolor;
		border-radius: 50%;
	}
}

@keyframes loader-04 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

/////////////////////////////////////
.loader-05 {
	border: .2em solid transparent;
	border-top-color: currentcolor;
	border-radius: 50%;
	animation: 1s loader-05 linear infinite;
	position: relative;
	&:before {
		content: '';
		display: block;
		width: inherit;
		height: inherit;
		position: absolute;
		top: -.2em;
		;
		left: -.2em;
		;
		border: .2em solid currentcolor;
		border-radius: 50%;
		opacity: .5;
	}
}

@keyframes loader-05 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

////////////////////////////////////////
.loader-06 {
	border: .2em solid currentcolor;
	border-radius: 50%;
	animation: loader-06 1s ease-out infinite;
}

@keyframes loader-06 {
	0% {
		transform: scale(0);
		opacity: 0;
	}
	50% {
		opacity: 1;
	}
	100% {
		transform: scale(1);
		opacity: 0;
	}
}

///////////////////////////////////////
.loader-07 {
	border: 0 solid transparent;
	border-radius: 50%;
	position: relative;
	&:before,
	&:after {
		content: '';
		border: .2em solid currentcolor;
		border-radius: 50%;
		width: inherit;
		height: inherit;
		position: absolute;
		top: 0;
		left: 0;
		animation: loader-07 1s linear infinite;
		opacity: 0;
	}
	&:before {
		animation-delay: 1s;
	}
	&:after {
		animation-delay: .5s;
	}
}

@keyframes loader-07 {
	0% {
		transform: scale(0);
		opacity: 0;
	}
	50% {
		opacity: 1;
	}
	100% {
		transform: scale(1);
		opacity: 0;
	}
}

///////////////////////////////////////
.loader-08 {
	position: relative;
	&:before,
	&:after {
		content: '';
		width: inherit;
		height: inherit;
		border-radius: 50%;
		background-color: currentcolor;
		opacity: 0.6;
		position: absolute;
		top: 0;
		left: 0;
		animation: loader-08 2.0s infinite ease-in-out;
	}
	&:after {
		animation-delay: -1.0s;
	}
}

@keyframes loader-08 {
	0%,
	100% {
		transform: scale(0.0);
	}
	50% {
		transform: scale(1.0);
	}
}

///////////////////////////////////////////////////
.loader-09 {
	background-color: currentcolor;
	border-radius: 50%;
	animation: loader-09 1.0s infinite ease-in-out;
}

@keyframes loader-09 {
	0% {
		transform: scale(0);
	}
	100% {
		transform: scale(1.0);
		opacity: 0;
	}
}

/////////////////////////////////////////////////
.loader-10 {
	position: relative;
	animation: loader-10-1 2.0s infinite linear;
	&:before,
	&:after {
		content: '';
		width: 0;
		height: 0;
		border: .5em solid currentcolor;
		display: block;
		position: absolute;
		border-radius: 100%;
		animation: loader-10-2 2s infinite ease-in-out;
	}
	&:before {
		top: 0;
		left: 50%;
	}
	&:after {
		bottom: 0;
		right: 50%;
		animation-delay: -1s;
	}
}

@keyframes loader-10-1 {
	100% {
		transform: rotate(360deg);
	}
}

@keyframes loader-10-2 {
	0%,
	100% {
		transform: scale(0);
	}
	50% {
		transform: scale(1);
	}
}

////////////////////////////////////////////////
.loader-11 {
	background-color: currentcolor;
	animation: loader-11 1.2s infinite ease-in-out;
}

@keyframes loader-11 {
	0% {
		transform: perspective(120px) rotateX(0deg) rotateY(0deg);
	}
	50% {
		transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
	}
	100% {
		transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
	}
}

////////////////////////////////////////////////
.loader-12 {
	position: relative;
	&:before,
	&:after {
		content: '';
		display: block;
		position: absolute;
		background-color: currentcolor;
		left: 50%;
		right: 0;
		top: 0;
		bottom: 50%;
		box-shadow: -.5em 0 0 currentcolor;
		animation: loader-12 1s linear infinite;
	}
	&:after {
		top: 50%;
		bottom: 0;
		animation-delay: .25s;
	}
}

@keyframes loader-12 {
	0%,
	100% {
		box-shadow: -.5em 0 0 transparent;
		background-color: currentcolor;
	}
	50% {
		box-shadow: -.5em 0 0 currentcolor;
		background-color: transparent;
	}
}

/////////////////////////////////////////////////
.loader-13:before,
.loader-13:after,
.loader-13 {
	border-radius: 50%;
	animation-fill-mode: both;
	animation: loader-13 1.8s infinite ease-in-out;
}

.loader-13 {
	color: currentcolor;
	position: relative;
	transform: translateZ(0);
	animation-delay: -0.16s;
	top: -1em;
	&:before {
		right: 100%;
		animation-delay: -0.32s;
	}
	&:after {
		left: 100%;
	}
	&:before,
	&:after {
		content: '';
		display: block;
		position: absolute;
		top: 0;
		width: inherit;
		height: inherit;
	}
}

@keyframes loader-13 {
	0%,
	80%,
	100% {
		box-shadow: 0 1em 0 -1em;
	}
	40% {
		box-shadow: 0 1em 0 -.2em;
	}
}

//////////////////////////////////////////////////////////
.loader-14 {
	border-radius: 50%;
	box-shadow: 0 1em 0 -.2em currentcolor;
	position: relative;
	animation: loader-14 0.8s ease-in-out alternate infinite;
	animation-delay: 0.32s;
	top: -1em;
	&:after,
	&:before {
		content: '';
		position: absolute;
		width: inherit;
		height: inherit;
		border-radius: inherit;
		box-shadow: inherit;
		animation: inherit;
	}
	&:before {
		left: -1em;
		animation-delay: 0.48s;
	}
	&:after {
		right: -1em;
		animation-delay: 0.16s;
	}
}

@keyframes loader-14 {
	0% {
		box-shadow: 0 2em 0 -.2em currentcolor;
	}
	100% {
		box-shadow: 0 1em 0 -.2em currentcolor;
	}
}

////////////////////////////////////////////
.loader-15 {
	background: currentcolor;
	position: relative;
	animation: loader-15 1s ease-in-out infinite;
	animation-delay: 0.4s;
	width: .25em;
	height: .5em;
	margin: 0 .5em;
	&:after,
	&:before {
		content: '';
		position: absolute;
		width: inherit;
		height: inherit;
		background: inherit;
		animation: inherit;
	}
	&:before {
		right: .5em;
		animation-delay: 0.2s;
	}
	&:after {
		left: .5em;
		animation-delay: 0.6s;
	}
}

@keyframes loader-15 {
	0%,
	100% {
		box-shadow: 0 0 0 currentcolor, 0 0 0 currentcolor;
	}
	50% {
		box-shadow: 0 -.25em 0 currentcolor, 0 .25em 0 currentcolor;
	}
}

////////////////////////////////////////////
.loader-16 {
	transform: rotateZ(45deg);
	perspective: 1000px;
	border-radius: 50%;
	&:before,
	&:after {
		content: '';
		display: block;
		position: absolute;
		top: 0;
		left: 0;
		width: inherit;
		height: inherit;
		border-radius: 50%;
		animation: 1s spin linear infinite;
	}
	&:before {
		transform: rotateX(70deg);
	}
	&:after {
		transform: rotateY(70deg);
		animation-delay: .4s;
	}
}

@keyframes rotate {
	0% {
		transform: translate(-50%, -50%) rotateZ(0deg);
	}
	100% {
		transform: translate(-50%, -50%) rotateZ(360deg);
	}
}

@keyframes rotateccw {
	0% {
		transform: translate(-50%, -50%) rotate(0deg);
	}
	100% {
		transform: translate(-50%, -50%) rotate(-360deg);
	}
}

@keyframes spin {
	0%,
	100% {
		box-shadow: .2em 0px 0 0px currentcolor;
	}
	12% {
		box-shadow: .2em .2em 0 0 currentcolor;
	}
	25% {
		box-shadow: 0 .2em 0 0px currentcolor;
	}
	37% {
		box-shadow: -.2em .2em 0 0 currentcolor;
	}
	50% {
		box-shadow: -.2em 0 0 0 currentcolor;
	}
	62% {
		box-shadow: -.2em -.2em 0 0 currentcolor;
	}
	75% {
		box-shadow: 0px -.2em 0 0 currentcolor;
	}
	87% {
		box-shadow: .2em -.2em 0 0 currentcolor;
	}
}

//////////////////////////////////
.loader-17 {
	position: relative;
	background-color: currentcolor;
	border-radius: 50%;
	&:after,
	&:before {
		content: "";
		position: absolute;
		width: .25em;
		height: .25em;
		border-radius: 50%;
		opacity: .8;
	}
	&:after {
		left: -.5em;
		top: -.25em;
		background-color: currentcolor;
		transform-origin: .75em 1em;
		animation: loader-17 1s linear infinite;
		opacity: .6;
	}
	&:before {
		left: -1.25em;
		top: -.75em;
		background-color: currentcolor;
		transform-origin: 1.5em 1em;
		animation: loader-17 2s linear infinite;
	}
}

@keyframes loader-17 {
	0% {
		transform: rotateZ(0deg) translate3d(0, 0, 0);
	}
	100% {
		transform: rotateZ(360deg) translate3d(0, 0, 0);
	}
}

//////////////////////////////////
.loader-18 {
	position: relative;
	&:before,
	&:after {
		content: '';
		display: block;
		position: absolute;
		border-radius: 50%;
		border: .1em solid transparent;
		border-bottom-color: currentcolor;
		top: 0;
		left: 0;
		animation: 1s loader-18 linear infinite;
	}
	&:before {
		width: 1em;
		height: 1em;
	}
	&:after {
		width: .8em;
		height: .8em;
		top: .1em;
		left: .1em;
		animation-direction: reverse;
	}
}

@keyframes loader-18 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

/////////////////////////////////////////
.loader-19 {
	border-top: .2em solid currentcolor;
	border-right: .2em solid transparent;
	animation: loader-19 1s linear infinite;
	border-radius: 100%;
	position: relative;
}

@keyframes loader-19 {
	to {
		transform: rotate(360deg);
	}
}

////////////////////////////////////////
.loader-20 {
	background-color: transparent;
	box-shadow: inset 0px 0px 0px .1em currentcolor;
	border-radius: 50%;
	position: relative;
	&:after,
	&:before {
		position: absolute;
		content: "";
		background-color: currentcolor;
		top: .5em;
		left: .5em;
		height: .1em;
		transform-origin: left center;
	}
	&:after {
		width: .4em;
		animation: loader-20 2s linear infinite;
	}
	&:before {
		width: .3em;
		animation: loader-20 8s linear infinite;
	}
}

@keyframes loader-20 {
	0% {
		transform: rotate(0deg)
	}
	100% {
		transform: rotate(360deg)
	}
}

////////////////////////////////////////
.loader-21 {
	position: relative;
	&:before,
	&:after {
		position: absolute;
		content: "";
	}
	&:before {
		width: 80%;
		height: 80%;
		left: 10%;
		bottom: 10%;
		border-radius: 100% 100% 100% 0;
		box-shadow: 0px 0px 0px .1em currentcolor;
		animation: loader-21 1s linear infinite;
		transform: rotate(-46deg);
	}
	&:after {
		width: 1em;
		height: .3em;
		border-radius: 100%;
		left: 0;
		background-color: rgba(255, 255, 255, 0.2);
		bottom: -.2em;
		z-index: -1;
	}
}

@keyframes loader-21 {
	0% {
		top: 0;
	}
	50% {
		top: -5px;
	}
	100% {
		top: 0;
	}
}

////////////////////////////////////////////////
.loader-22 {
	border: .1em currentcolor solid;
	border-radius: 100%;
	position: relative;
	overflow: hidden;
	z-index: 1;
	&:after,
	&:before {
		position: absolute;
		content: "";
		background-color: currentcolor;
	}
	&:after {
		width: 50%;
		height: .1em;
		left: 50%;
		top: 50%;
		transform-origin: left center;
		animation: loader-22 2s linear infinite alternate;
	}
	&:before {
		width: 100%;
		height: 40%;
		left: 0;
		bottom: 0;
	}
}

@keyframes loader-22 {
	0% {
		transform: rotate(-160deg);
	}
	100% {
		transform: rotate(-20deg);
	}
}

/////////////////////////////////////////////
.loader-23 {
	height: .5em;
	border: .1em currentcolor solid;
	border-radius: .1em;
	position: relative;
	animation: loader-23 5s linear infinite;
	&:after {
		width: .07em;
		height: 100%;
		background-color: currentcolor;
		border-radius: 0px .5em .5em 0px;
		position: absolute;
		content: "";
		top: 0;
		left: calc(100% + .1em);
	}
}

@keyframes loader-23 {
	0% {
		box-shadow: inset 0px 0px 0px currentcolor;
	}
	100% {
		box-shadow: inset 1em 0px 0px currentcolor;
	}
}

/////////////////////////////////////////////
.loader-24 {
	width: .8em;
	height: 1em;
	border: .1em currentcolor solid;
	border-radius: 0px 0px .2em .2em;
	position: relative;
	&:after,
	&:before {
		position: absolute;
		content: "";
	}
	&:after {
		width: .2em;
		height: 50%;
		border: .1em currentcolor solid;
		border-left: none;
		border-radius: 0px .5em .5em 0px;
		left: calc(100% + .1em);
		top: .1em;
	}
	&:before {
		width: .1em;
		height: .3em;
		background-color: currentcolor;
		top: -.3em;
		left: .05em;
		box-shadow: .2em 0px 0px 0px currentcolor, .2em -.2em 0px 0px currentcolor, .4em 0px 0px 0px currentcolor;
		animation: loader-24 1s linear infinite alternate;
	}
}

@keyframes loader-24 {
	0% {
		height: 0px
	}
	100% {
		height: 6px;
	}
}

////////////////////////////////////////
.loader-25 {
	border: .1em currentcolor solid;
	position: relative;
	animation: loader-25-1 5s linear infinite;
	&:after {
		width: .2em;
		height: .2em;
		position: absolute;
		content: "";
		background-color: currentcolor;
		bottom: calc(100% + .2em);
		left: -.4em;
		animation: loader-25-2 1s ease-in-out infinite;
	}
}

@keyframes loader-25-1 {
	0% {
		box-shadow: inset 0 0 0 0 currentcolor;
	}
	100% {
		box-shadow: inset 0 -1em 0 0 currentcolor;
	}
}

@keyframes loader-25-2 {
	25% {
		left: calc(100% + .2em);
		bottom: calc(100% + .2em);
	}
	50% {
		left: calc(100% + .2em);
		bottom: -.4em;
	}
	75% {
		left: -.4em;
		bottom: -.4em;
	}
	100% {
		left: -.4em;
		bottom: calc(100% + .2em);
	}
}

////////////////////////////////////////////
.loader-26 {
	width: .5em;
	height: .5em;
	background-color: currentcolor;
	box-shadow: 1em 0px 0px currentcolor;
	border-radius: 50%;
	animation: loader-26 1s ease-in-out infinite alternate;
}

@keyframes loader-26 {
	0% {
		opacity: 0.1;
		transform: rotate(0deg) scale(0.5);
	}
	100% {
		opacity: 1;
		transform: rotate(360deg) scale(1.2);
	}
}

//////////////////////////////////////////////
.loader-27 {
	box-shadow: inset 0 0 0 .1em currentcolor;
	border-radius: 50%;
	position: relative;
	margin-left: 1.2em;
	&:before {
		content: '';
		display: block;
		width: inherit;
		height: inherit;
		border-radius: 50%;
		position: absolute;
		right: 1.2em;
		top: 0;
		box-shadow: inset 0 0 0 .1em currentcolor;
	}
	&:after {
		border: .2em solid currentcolor;
		box-shadow: -1.2em 0 0 0 currentcolor;
		width: 0;
		height: 0;
		border-radius: 50%;
		left: 50%;
		top: 25%;
		position: absolute;
		content: "";
		animation: loader-27 2s linear infinite alternate;
	}
}

@keyframes loader-27 {
	0% {
		left: 0;
	}
	100% {
		left: .5em;
	}
}

/////////////////////////////////////////////////
.loader-28 {
	position: relative;
	animation: 2s loader-28-1 infinite;
	&:before {
		content: '';
		display: block;
		width: inherit;
		height: inherit;
		border-radius: 80% 20%;
		border: .1em solid currentcolor;
		transform: rotate(45deg);
		border-width: .1em .05em .05em .1em;
	}
	&:after {
		content: '';
		display: block;
		width: .2em;
		height: .2em;
		position: absolute;
		top: .4em;
		left: 50%;
		border-radius: 50%;
		box-shadow: -.07em .07em 0 .1em currentcolor;
		animation: 2s loader-28-2 linear infinite;
	}
}

@keyframes loader-28-1 {
	0%,
	100% {
		transform: scaleY(1);
	}
	10% {
		transform: scaleY(0);
	}
	20% {
		transform: scaleY(1);
	}
}

@keyframes loader-28-2 {
	0%,
	100% {
		transform: translateX(0);
	}
	30% {
		transform: translateX(-100%);
	}
	50% {
		transform: transalteX(200%);
	}
}

/////////////////////////////////////////
.loader-29 {
	border-radius: 50%;
	box-shadow: inset 0 0 0 .1em currentcolor, -.5em -.5em 0 -.4em currentcolor, 0 -.7em 0 -.4em currentcolor, .5em -.5em 0 -.4em currentcolor, -.5em .5em 0 -.4em currentcolor, 0 .7em 0 -.4em currentcolor, .5em .5em 0 -.4em currentcolor, -.7em 0 0 -.4em currentcolor, .7em 0 0 -.4em currentcolor;
	animation: 5s loader-29 linear infinite;
}

@keyframes loader-29 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

///////////////////////////////////////
.loader-30 {
	border: .2em solid transparent;
	border-top-color: currentcolor;
	border-bottom-color: currentcolor;
	border-radius: 50%;
	position: relative;
	animation: 1s loader-30 linear infinite;
	&:before,
	&:after {
		content: '';
		display: block;
		width: 0;
		height: 0;
		position: absolute;
		border: .2em solid transparent;
		border-bottom-color: currentcolor;
	}
	&:before {
		transform: rotate(135deg);
		right: -.3em;
		top: -.05em;
	}
	&:after {
		transform: rotate(-45deg);
		left: -.3em;
		bottom: -.05em;
	}
}

@keyframes loader-30 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

//////////////////////////////////////
.loader-31 {
	box-shadow: 0 0 2em currentcolor;
	background-color: currentcolor;
	position: relative;
	border-radius: 50%;
	transform: rotateX(-60deg) perspective(1000px);
	&:before,
	&:after {
		content: '';
		display: block;
		position: absolute;
		top: 0;
		left: 0;
		width: inherit;
		height: inherit;
		border-radius: inherit;
		animation: 1s loader-31 ease-out infinite;
	}
	&:after {
		animation-delay: .4s;
	}
}

@keyframes loader-31 {
	0% {
		opacity: 1;
		transform: rotate(0deg);
		box-shadow: 0 0 0 -.5em currentcolor, 0 0 0 -.5em currentcolor, 0 0 0 -.5em currentcolor, 0 0 0 -.5em currentcolor, 0 0 0 -.5em currentcolor, 0 0 0 -.5em currentcolor, 0 0 0 -.5em currentcolor, 0 0 0 -.5em currentcolor;
	}
	100% {
		opacity: 0;
		transform: rotate(180deg);
		box-shadow: -1em -1em 0 -.35em currentcolor, 0 -1.5em 0 -.35em currentcolor, 1em -1em 0 -.35em currentcolor, -1.5em 0 0 -.35em currentcolor, 1.5em -0 0 -.35em currentcolor, -1em 1em 0 -.35em currentcolor, 0 1.5em 0 -.35em currentcolor, 1em 1em 0 -.35em currentcolor;
	}
}

/////////////////////////////////////////////////
.loader-32 {
	position: relative;
	border-radius: 50%;
	box-shadow: 0 0 1em 0 currentcolor, inset 0 0 1em 0 currentcolor;
	animation: 1s loader-32 linear infinite;
	&:before,
	&:after {
		content: '';
		display: block;
		width: inherit;
		height: inherit;
		position: absolute;
		border-radius: 50%;
	}
	&:before {
		border-top: .2em solid currentcolor;
		border-right: .2em solid transparent;
		top: .28em;
		right: calc(50% - .22em);
	}
	&:after {
		border-bottom: .2em solid currentcolor;
		border-left: .2em solid transparent;
		bottom: .28em;
		left: calc(50% - .22em);
	}
}

@keyframes loader-32 {
	0% {
		transform: rotateX(-60deg) rotateZ(0deg);
	}
	100% {
		transform: rotateX(-60deg) rotateZ(360deg);
	}
}

////////////////////////////////////////////////
.loader-33 {
	border-radius: 50%;
	position: relative;
	//width: 180px;
	//height: 180px;
	&:after,
	&:before {
		position: absolute;
		content: "";
	}
	&:after {
		height: 0.1em;
		width: 1em;
		background-color: currentcolor;
		border-radius: 0.1em;
		bottom: 0;
		left: 0;
		transform-origin: bottom center;
		animation: loader-33-1 0.8s ease-in-out infinite alternate;
	}
	&:before {
		height: .2em;
		width: .2em;
		background-color: currentcolor;
		border-radius: 50%;
		top: 0;
		left: calc(50% - .1em);
		animation: loader-33-2 0.4s ease-in-out infinite alternate;
	}
}

@keyframes loader-33-2 {
	0% {
		height: .24em;
		transform: translateY(0px);
	}
	75% {
		height: .2em;
		width: .2em;
	}
	100% {
		height: .1em;
		width: .24em;
		transform: translateY(.8em);
	}
}

@keyframes loader-33-1 {
	0% {
		transform: rotate(-45deg);
	}
	100% {
		transform: rotate(45deg);
	}
}

//////////////////////////////////////////////////
.loader-34 {
	position: relative;
	width: 1em;
	height: .5em;
	&:after,
	&:before {
		position: absolute;
		content: "";
		height: .4em;
		width: .4em;
		top: 0;
		background-color: currentcolor;
		border-radius: 50%;
	}
	&:after {
		right: 0;
		animation: loader-34-2 0.5s ease-in-out infinite;
		animation-direction: alternate;
	}
	&:before {
		left: 0;
		animation: loader-34-1 0.5s ease-in-out infinite;
		animation-direction: alternate;
	}
}

@keyframes loader-34-1 {
	0% {
		transform: translatex(0px);
	}
	65% {
		height: .4em;
		width: .4em;
	}
	100% {
		height: .5em;
		width: .3em;
		transform: translatex(.2em);
	}
}

@keyframes loader-34-2 {
	0% {
		transform: translatex(0px);
	}
	65% {
		height: .4em;
		width: .4em;
	}
	100% {
		height: .5em;
		width: .3em;
		transform: translatex(-.2em);
	}
}

///////////////////////////////////////////
.loader-35 {
	margin: 0 .5em;
	position: relative;
	&:before {
		border-radius: 50%;
		background-color: currentcolor;
		animation: loader-35 3s cubic-bezier(0.77, 0, 0.175, 1) infinite;
		content: '';
		width: inherit;
		height: inherit;
		top: 0;
		left: 0;
		position: absolute;
	}
}

@keyframes loader-35 {
	0% {
		transform: translateX(0) scale(1)
	}
	25% {
		transform: translateX(-100%) scale(0.3)
	}
	50% {
		transform: translateX(0) scale(1)
	}
	75% {
		transform: translateX(100%) scale(0.3)
	}
	100% {
		transform: translateX(0) scale(1)
	}
}

///////////////////////////////////////////////
.loader-36 {
	position: relative;
	&:before,
	&:after {
		content: '';
		position: absolute;
		top: 0;
		left: 0;
	}
	&:before {
		width: 1em;
		height: 1em;
		border: .1em solid currentcolor;
		border-radius: 50%;
		animation: loader-36-1 1.15s infinite -0.3s;
	}
	&:after {
		right: 0;
		bottom: 0;
		margin: auto;
		width: 0;
		height: 0;
		border: .1em solid currentcolor;
		border-radius: 50%;
		transform: translate(-.2em);
		animation: loader-36-2 4.6s infinite steps(1);
	}
}

@keyframes loader-36-1 {
	to {
		transform: rotateX(180deg);
	}
}

@keyframes loader-36-2 {
	0% {
		opacity: 0;
	}
	25% {
		opacity: 1;
	}
	50% {
		box-shadow: .2em 0 0 currentcolor;
	}
	75% {
		box-shadow: .2em 0 0 currentcolor, .4em 0 0 currentcolor;
	}
}

////////////////////////////////////////////
.loader-37 {
	border-right: .1em solid currentcolor;
	border-radius: 100%;
	animation: loader-37 800ms linear infinite;
	&:before,
	&:after {
		content: '';
		width: .8em;
		height: .8em;
		display: block;
		position: absolute;
		top: calc(50% - .4em);
		left: calc(50% - .4em);
		border-left: .08em solid currentcolor;
		border-radius: 100%;
		animation: loader-37 400ms linear infinite reverse;
	}
	&:after {
		width: .6em;
		height: .6em;
		top: calc(50% - .3em);
		left: calc(50% - .3em);
		border: 0;
		border-right: .05em solid currentcolor;
		animation: none;
	}
}

@keyframes loader-37 {
	from {
		transform: rotate(360deg);
	}
	to {
		transform: rotate(0deg);
	}
}

//////////////////////////////////////////////////////////
.loader-38 {
	height: 0.1em;
	width: 0.1em;
	box-shadow: -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor;
	animation: loader-38 6s infinite;
}

@keyframes loader-38 {
	0% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor;
	}
	8.33% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor;
	}
	16.66% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor;
	}
	24.99% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor;
	}
	33.32% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor;
	}
	41.65% {
		box-shadow: 0.2em -0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor;
	}
	49.98% {
		box-shadow: 0.2em 0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor;
	}
	58.31% {
		box-shadow: -0.2em 0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor;
	}
	66.64% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor;
	}
	74.97% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, 0.2em -0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor;
	}
	83.3% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, 0.2em 0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor;
	}
	91.63% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor, -0.2em 0.2em 0 0.1em currentcolor;
	}
	100% {
		box-shadow: -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor, -0.2em -0.2em 0 0.1em currentcolor;
	}
}
///////////////////////////////////////////////////////////
.loader-39 {
  position: relative;
  width: .15em;
  height: .15em;
  background-color: currentcolor;
  border-radius: 100%;
  animation: loader-39-1 30s infinite linear;
	&:before, &:after {
		content: '';
		border-radius: 100%;
		position: absolute;
		top: 50%;
		left: 50%;
		transform: translate(-50%, -50%);
	}
	&:before {
		width: .3em;
		height: 1em;
		animation: loader-39-2 .8s linear infinite;
	}
	&:after {
		width: 1em;
		height: .3em;
		animation: loader-39-2 1.2s linear infinite;
	}
}
@keyframes loader-39-1 {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}
@keyframes loader-39-2 {
  0% {
    box-shadow: 0.04em -0.04em 0 0.02em currentcolor;
  }
  25% {
    box-shadow: 0.04em 0.04em 0 0.02em currentcolor;
  }
  50% {
    box-shadow: -0.04em 0.04em 0 0.02em currentcolor;
  }
  75% {
    box-shadow: -0.04em -0.04em 0 0.02em currentcolor;
  }
  100% {
    box-shadow: 0.04em -0.04em 0 0.02em currentcolor;
  }
}
//////////////////////
.loader-40 {
	border: .05em currentcolor solid;
	border-radius: .2em;
	overflow: hidden;
	position: relative;
	&:after, &:before {
		content: '';
		border-radius: 50%;
		position: absolute;
		width: inherit;
		height: inherit;
		animation: loader-40 2s infinite linear;
	}
	&:before {
		border-top: .2em currentcolor solid;
		top: -.15em;
		left: calc( -50% - .15em );
		transform-origin: right center;
	}
	&:after {
		border-bottom: .2em currentcolor solid;
		top: .15em;
		right: calc( -50% - .15em );
		transform-origin: left center;
	}
}
@keyframes loader-40 {
	from { transform: rotate(0deg); }
	to { transform: rotate(359deg); }
}
//////////////////////
.loader-41 {
	border: .05em currentcolor solid;
	border-radius: .2em;
	position: relative;
	background: linear-gradient(45deg, transparent 48%, currentcolor 50%, currentcolor 50%, transparent 52%, transparent),
				linear-gradient(-45deg, transparent 48%, currentcolor 50%, currentcolor 50%, transparent 52%, transparent);
	background-size: .5em .5em;
	background-position: 0% 0%;
	animation: loader-41 1s infinite linear;
}
@keyframes loader-41 {
	from { background-position: 0 0; }
	to { background-position: -1em 0; }
}

//////////////////////
.loader-42 {
	width: 2em;
	height: .66em;
	border: .05em currentcolor solid;
	border-radius: .1em;
	background: linear-gradient(-60deg, transparent 0%, transparent 50%, currentcolor 50%, currentcolor 75%, transparent 75%, transparent);
	background-size: 1em 2em;
	background-position: 0 0;
	animation: loader-42 0.8s infinite linear;
}
@keyframes loader-42 {
	from { background-position: 0 0; }
	to { background-position: -2em 0; }
}

//////////////////////


//////////////////////
.box:nth-of-type(n + 43){
	display:none;
}
              
            
!

JS

              
                /*
All loaders here need to meet following requirements:
- their size must depend on the font-size of their parent;
- they must only use the color of their parent;
- they must be single elements with no children elments;
*/



$('button').on('click', function(){
	var number = getRandomInt(1, 40);
	if (number < 10) {number = '0'+ number;}
	$(this).html('<div class="loader-' + number + '"></div> Loading...');
	console.log('Resize window to change size and color of the button');
});

function getRandomInt(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

$(window).resize(function() {
	$('button').css('color', 'hsl(' + Math.floor((window.innerWidth / 360)*100)  + ', 70%, 70%)');
});
              
            
!
999px

Console