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HTML 

              
                        <script src="https://kit.fontawesome.com/aecf18c460.js" crossorigin="anonymous"></script>

        <a class="link" href="https://twitter.com/thisisfjolt" target="_top">Follow on Twitter</a>
        <a class="link" href="https://fjolt.com/article/css-checkboxes" target="_top">Read the Article</a>
        <h1>The List:</h1>
        <div id="colors">
            <div data-color="purple" data-main-color="#9100e8" data-box-shadow-tint="#9100e8cc" data-light-highlight="#d7c6ff"></div>
            <div data-color="blue" data-main-color="#0074e8" data-box-shadow-tint="#0074e8cc" data-light-highlight="#c6e2ff"></div>
            <div data-color="green" data-main-color="#20b951" data-box-shadow-tint="#20b951cc" data-light-highlight="#c6ffea"></div>
            <div data-color="red" data-main-color="#de4947" data-box-shadow-tint="#de4947cc" data-light-highlight="#ffc6c6"></div>
            <div data-color="orange" data-main-color="#dc7d17" data-box-shadow-tint="#dc7d17cc" data-light-highlight="#ffd6c6"></div>
        </div>
        <div class="list">
            <div class="list-item">
                <span class="checkbox-container f1 light" data-value="">
                    <input type="hidden" id="checkbox-f1-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f1" checked />
                    <label for="checkbox-f1" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    🎩 The old fashioned
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f10 light" data-value="">
                    <input type="hidden" id="checkbox-f10-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f10" checked />
                    <svg id="svgElement" width="3em" height="3em" viewBox="115 140 70 70">
                        <path fill="none" stroke-linecap="round" class="path" stroke="#000" stroke-width="4" d="M173 196 L172 196.33333333333334 L169.8 197.2 L164.71428571428572 197.71428571428572 L161.5 197.875 L156.125 198 L150 197.625 L143.5 196.75 L136.75 195.125 L130.875 192.75 L125.75 189.875 L121.875 186.25 L119.125 181.875 L118.125 176.875 L118.625 171.875 L120.375 167 L123.25 162.5 L127.125 158.625 L131.875 155.25 L137.5 152.625 L143.5 151.125 L149.5 151.125 L155.5 152.375 L161.25 154.5 L166.5 157.5 L171 161.125 L174.75 165.375 L177.625 170.25 L180 175.125 L181.375 179.625 L181.875 183.625 L181.5 187.25 L180.75 190.375 L179.5 193 L178 195 L176.375 196.375 L174.75 197.375 L173.375 198.125 L172 198.83333333333334 L171 199 L170.5 199"></path>
                    </svg>
                    <label for="checkbox-f10" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    Circle with pencil
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f2 light" data-value="">
                    <input type="hidden" id="checkbox-f2-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f2" checked />
                    <label for="checkbox-f2" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    The Slider
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f3 light" data-value="">
                    <input type="hidden" id="checkbox-f3-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f3" />
                    <span class="halfway alt-selection" data-value="0.5"></span>
                    <label for="checkbox-f3" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    I'm only halfway done
                </span>
            </div>
            <div class="list-item dark">
                <span class="checkbox-container f4 light" data-value="">
                    <input type="hidden" id="checkbox-f4-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f4" />
                    <label for="checkbox-f4" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    ☄️ Slide a little more
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f5 light" data-value="">
                    <input type="hidden" id="checkbox-f5-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f5" checked />
                    <label for="checkbox-f5" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    ⭕️ The circle
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f6 light" data-value="">
                    <input type="hidden" id="checkbox-f6-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f6" checked />
                    <label for="checkbox-f6" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    🎯 The target
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f7 light" data-value="">
                    <input type="hidden" id="checkbox-f7-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f7" />
                    <span class="noway alt-selection" data-value="0"></span>
                    <span class="thirdway alt-selection" data-value="0.33"></span>
                    <span class="threethirdway alt-selection" data-value="0.66"></span>
                    <span class="fullway alt-selection" data-value="1"></span>
                    <label for="checkbox-f7" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    4 Options, for 4 things
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f8 light" data-value="">
                    <input type="hidden" id="checkbox-f8-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f8" />
                    <label for="checkbox-f8" class="pseudo-checkbox">
                        I Agree!
                    </label>
                </span>
                <span class="list-item-text">
                    👩‍💼 The "I Agree to Terms and Conditions"
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f9 light" data-value="">
                    <input type="hidden" id="checkbox-f9-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f9" checked />
                    <label for="checkbox-f9" class="pseudo-checkbox">
                        I Agree!
                    </label>
                </span>
                <span class="list-item-text">
                    👩‍ I Agree but differently
                </span>
            </div>
            <div class="list-item">
                <span class="checkbox-container f11 light" data-value="">
                    <input type="hidden" id="checkbox-f11-value" class="hidden-value" checked />
                    <input type="checkbox" id="checkbox-f11" checked />
                    <svg id="svgElement1" width="1em" height="1em" viewBox="440 170 70 70">
                        <path fill="none" stroke-linecap="round" class="path" stroke="#fff" stroke-width="7" d="M452 202 L452 202.33333333333334 L452 204.2 L452.14285714285717 206.28571428571428 L452.25 207.375 L452.625 209.375 L453 211.625 L453.5 214 L454 216 L454.625 218.25 L455.25 220.25 L455.75 222 L456.375 223.625 L456.75 224.875 L457.25 226 L457.625 227 L458 227.875 L458.375 228.5 L458.75 229.125 L459.125 229.625 L459.375 230 L459.75 230.375 L460 230.75 L460.25 231 L460.5 231.25 L460.625 231.5 L460.875 231.5 L461.125 231.375 L461.5 231 L461.875 230.125 L462.375 228.875 L463 227.125 L464.125 224.625 L465.625 221.5 L467.125 218.25 L469.125 214.375 L471.25 210.375 L473.625 206.375 L476.125 202.125 L478.75 198 L481 194.25 L483 191 L485 187.75 L486.625 185.125 L488.125 182.875 L489.25 181 L490.125 179.625 L490.875 178.625 L491.6666666666667 177.66666666666666 L492.25 177.25 L492.5 177"></path>
                    </svg>
                    <label for="checkbox-f11" class="pseudo-checkbox"></label>
                </span>
                <span class="list-item-text">
                    🤷‍♂️ The handwritten tick
                </span>
            </div>
        </div>
!

CSS 

              
                :root {
	--main-color: #0074e8;
	--box-shadow-tint: #0074e8cc;
	--light-highlight: #c6e2ff;
}

html {
    font-size: 24px;
}

body {
	  margin: 2em;
	  font-family: 'Source Sans Pro', sans-serif;
}
#colors {
	position: fixed;
	right: 2em;
	top: 7em;
	width: 5em;
}
#colors > div {
	width: 1em;
	height: 1em;
	float: right;
	box-shadow: 0 2px 4px rgba(0,0,0,0.1);
	margin: 0 0em 1em 0.5em;
	cursor: pointer;
	border-radius: 100px;
	transition: all 0.1s ease-out;
}
#colors > div:hover {
	box-shadow: inset 0 0 0 100px rgba(0,0,0,0.2);
}
[data-color="purple"] {background: #9100e8;}
[data-color="blue"] { background: #0074e8; }
[data-color="green"] {background: #20b951;}
[data-color="red"] {background: #de4947;}
[data-color="orange"] {background: #dc7d17;}

a.link {
	font-size: 0.75em;
	background: var(--main-color);
	padding: 0.5em 1em;
	border-radius: 100px;
	transition: all 0.1s ease-out;
	color: white;
	position: fixed;
	top: 2em;
	right: 2.5em;
	text-decoration: none;
	display: block;
}

a.link + .link {
  top: 4rem;
}
a.link:hover {
	box-shadow: inset 0 0 0 100px rgba(0,0,0,0.3);
}
[type="checkbox"] {
  	position: absolute;
  	height: 100%;
  	width: 100%;
  	margin: 0;
  	top: 0;
  	right: 999999px;
  	padding: 0;
}

h1 { margin: 0; }

.checkbox-container {
	  display: inline-block;
	  position: relative;
}

.list { padding: 1em 0; }

.list-item {
	height: 1.5em;
	border-bottom: 1px solid rgb(52 69 69 / 8%);
	padding: 0.75em 0;
	white-space: nowrap;
}

.list-item-text {
    height: 1.5em;
    display: inline-block;
	vertical-align: top;
	font-size: 1.1167em;
    line-height: 1.5em;
    margin: 0 1em;
    color: #333;
    font-weight: 600;
}

.dark {
	background: #262b31;
	border-bottom: none;
	padding: 1em;
	width: calc(100% + 5em);
	height: 3.5em;
	box-sizing: border-box;
	margin: 0 0 0 -3em;
	padding: 1em 3em;
}

.dark .list-item-text {
	color: white;
	
}
/* Some default values */
.pseudo-checkbox {
  	width: 1.5em;
	height: 1.5em;
	position: relative;
  	border-radius: 6px;
  	display: block;
  	background: white;
}

/* F1 */
.f1 .pseudo-checkbox {
	background: linear-gradient(0deg, #f6fbff, white);
	border-radius: 6px;
	cursor: pointer;
	transition: all 0.1s ease-out;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f1 input[type="checkbox"]:checked + *:after {
	font-family: 'Font Awesome 5 Free';
	line-height: 1.5em;
	content: '\f00c';
	text-align: center;
	width: 100%;
	height: 100%;
	position: absolute;
	font-weight: 600;
	color: white;
	pointer-events: none;
	font-weight: 600;
	top: 0;
	z-index: 999;
	left: 0;
}

.f1 input[type="checkbox"]:focus + *,
.f1:hover [type="checkbox"] + * { /* For focusing */
  box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f1 [type="checkbox"]:checked + * {
  background: var(--main-color);
  color: white;
  box-shadow: 0 0 0 1px var(--main-color);
}

/* F2 */
.f2 .pseudo-checkbox {
	background: linear-gradient(0deg, #f6fbff, white);
	border-radius: 100px;
	cursor: pointer;
	width: 3em;
	transition: all 0.1s ease-out;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f2 input + .pseudo-checkbox:after {
	content: '';
	width: calc(1.5em - 4px);
	border-radius: 100px;
	height: calc(1.5em - 4px);
	position: absolute;
	top: 2px;
	left: 2px;
	transition: all 0.15s ease-out;
	background: #bbbbbb;
}

.f2 input:checked + .pseudo-checkbox:after {
	left: calc(100% - 1.5em + 2px);
	content: '';
	background: white;
	box-shadow: 0 2px 2px rgba(0,0,0,0.2);
}

.f2 input[type="checkbox"]:focus + *,
.f2:hover [type="checkbox"] + * { /* For focusing */
  box-shadow: #0000003d 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}
.f2 [type="checkbox"]:checked + *:after {
  content: '\f00c';
}

.f2 [type="checkbox"]:checked + * {
  background: var(--main-color);
  color: white;
  box-shadow: 0 0 0 1px var(--main-color);
}

/* F3 */
.f3 .pseudo-checkbox {
	background: white;
	border-radius: 6px;
	cursor: pointer;
	transition: all 0.1s ease-out;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f3 [type="checkbox"]:focus + span + label, .f3 [type="checkbox"]:hover + span + label { /* For focusing */
	box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	background: var(--light-highlight);
}

.f3[data-value="1"] label {
  	background: var(--main-color);
  	color: white;
  	box-shadow: 0 0 0 1px var(--main-color);
}


.f3[data-value="1"] input[type="checkbox"] + span + .pseudo-checkbox {
	background: var(--main-color);
	box-shadow: 0 0 0 2px var(--main-color)
}

.f3 .halfway {
	position: absolute;
	top: 0;
	box-shadow: rgba(52, 69, 69, 0.16) 1px 0px 0px 0px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	left: 0;
	width: 50%;
	height: 100%;
	transition: all 0.1s ease-out;
	z-index: 9;
	border-radius: 6px 0 0 6px;
	cursor: pointer;
}

.f3 .halfway.active {
	background: var(--main-color);
	box-shadow: 0 0 0 1px var(--main-color);
}

.f3 .halfway.active:hover {
	background: var(--main-color);
}
.f3 .halfway:hover {
	background: var(--light-highlight);
	box-shadow: rgba(0,0,0,0.2) 1px 0px 0px 0px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f3 .halfway:hover + * {
	background: white;
}

.f3 [type="checkbox"]:focus + .halfway.active,
.f3:hover [type="checkbox"] + .halfway.active { /* For focusing */
  box-shadow: 1px 0 0 0 var(--main-color);
}

.f3[data-value="1"]:after {
	font-family: 'Font Awesome 5 Free';
	line-height: 1.5em;
	content: '\f00c';
	text-align: center;
	width: 100%;
	height: 100%;
	position: absolute;
	background: var(--main-color);
	color: white;
	border-radius: 6px;
	font-weight: 600;
	pointer-events: none;
	top: 0;
	z-index: 999;
	left: 0;
}


/* F4 */
.f4 {
	width: 3em;
}

.f4 .pseudo-checkbox {
	cursor: pointer;
	transition: all 0.1s ease-out;
}

.f4 input[type="checkbox"] + *:after {
	transition: all 0.1s ease-out;
	font-family: 'Font Awesome 5 Free';
	line-height: 1.5em;
	content: '';
	text-align: center;
	width: 1em;
	height: 1em;
	position: absolute;
	color: white;
	pointer-events: none;
	top: 0.25em;
	font-weight: 600;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	z-index: -1;
	border-radius: 100px;
	left: -1px;
	background: white;
}

.f4 [type="checkbox"] + * {
  z-index: 99999;
  border-radius: 100px;
  background: transparent;
  color: white;
  width: 100%;
}

.f4 input:checked + .pseudo-checkbox:after {
	left: calc(100% - 1em + 2px);
	box-shadow: #0074e600 0px 2px 2px 0px, var(--main-color) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	background: var(--main-color);
}

.f4 input + .pseudo-checkbox:before, .f4:after {
	content: '';
	width: 100%;
	border-radius: 100px;
	z-index: -1;
	height: 6px;
	position: absolute;
	top: calc(50% - 3px);
	border-radius: 100px;
	left: 0;
	transition: all 0.15s ease-out;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	background: white;
}
.f4:after {
	background: var(--main-color);
	width: 0px;
	z-index: 99999;
	box-shadow: none;
	pointer-events: none;
	display: block;
}

.f4[data-value="1"]:after {
	width: 100%;
}
.f4 input[type="checkbox"]:focus + .pseudo-checkbox:after, .f4:hover input[type="checkbox"] + *:after { /* For focusing */
	box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	background: var(--main-color);
}


/* F5 */
.f5 .pseudo-checkbox {
	background: linear-gradient(0deg, #f6fbff, white);
	border-radius: 100px;
	cursor: pointer;
	transition: all 0.1s ease-out;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f5 input[type="checkbox"] + *:after {
	font-family: 'Font Awesome 5 Free';
	line-height: 1.5em;
	content: '\f00c';
	text-align: center;
	width: 100%;
	height: 100%;
	position: absolute;
	color: white;
	pointer-events: none;
	top: 0;
	border-radius: 100px;
	font-weight: 600;
	background: var(--main-color);
	color: white;
	box-shadow: 0 0 0 1px var(--main-color);
	clip-path: circle(0% at 0.25em 0.25em);
	z-index: 999;
	transform: scale(1);
	transition: all 0.08s cubic-bezier(0, 1.13, 0.93, 0.82);
	left: 0;
}

.f5 [type="checkbox"]:focus + *,
.f5:hover [type="checkbox"] + * { /* For focusing */
  box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
  background: linear-gradient(0deg, #f3f9ff, #f4faff);
}

.f5 [type="checkbox"]:checked + *:after {
	clip-path: circle(100% at 0.25em 0.25em);
}


/* F6 */
.f6 .pseudo-checkbox {
	background: linear-gradient(0deg, #f6fbff, white);
	border-radius: 100px;
	cursor: pointer;
	transition: all 0.1s ease-out;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f6 [type="checkbox"]:checked + label {
	background: var(--main-color);
	box-shadow: none;
}
.f6 input[type="checkbox"] + *:after, .f6 input[type="checkbox"] + *:before {
	line-height: 1.5em;
	content: '';
	text-align: center;
	width: 70%;
	pointer-events: none;
	height: 70%;
	position: absolute;
	pointer-events: none;
	box-shadow: 0 2px 2px rgba(0,0,0,0.2);
	top: 15%;
	transform: scale(0.001);
	border-radius: 100px;
	background: white;
	z-index: 999;
	transition: all 0.08s cubic-bezier(0, 1.13, 0.93, 0.82);
	left: 15%;
}

.f6 input[type="checkbox"] + *:before {
	width: 40%;
	height: 40%;
	top: 30%;
	left: 30%;
	z-index: 9999;
	background: var(--main-color);
	box-shadow: none;
}

.f6 input[type="checkbox"]:checked + *:after, .f6 input[type="checkbox"]:checked + *:before {
	transform: scale(1);
}
.f6 > input[type="checkbox"]:focus + *, .f6:hover [type="checkbox"] + * { /* For focusing */
  box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

/* F7 */
.f7 {
	width: 4em;
	cursor: pointer;
}
.f7 .noway, .f7 .fullway, .f7 .thirdway, .f7 .threethirdway {
	content: '';
	width: 0.75em;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	position: absolute;
	top: calc(50% - 0.3525em);
	left: -3px;
	z-index: 99;
	border-radius: 100px;
	height: 0.75em;
	background: white;
}
.f7 .fullway, .f7 .thirdway, .f7 .threethirdway {
	right: -3px;
	left: auto;
	z-index: 999;
	cursor: pointer;
}
.f7 .thirdway {left: calc(33.3% - 0.2em);}
.f7 .threethirdway {left: calc(66.6% - 0.4em);}
.f7 .pseudo-checkbox {
	width: inherit;
	cursor: pointer;
	pointer-events: none;
}

.f7[data-value="0"] .noway, 
.f7[data-value="1"] .noway, .f7[data-value="1"] .fullway,
.f7[data-value="1"] .thirdway, .f7[data-value="1"] .threethirdway,
.f7[data-value="0.33"] .noway, .f7[data-value="0.33"] .thirdway,
.f7[data-value="0.66"] .noway, .f7[data-value="0.66"] .thirdway,
.f7[data-value="0.66"] .threethirdway {
	background: var(--main-color);
	box-shadow: var(--main-color) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px, 0 3px 2px rgba(0,0,0,0.15);
}


.f7 input[type="checkbox"] ~ label:after {
	width: inherit;
	content: '';
	height: 6px;
	border-radius: 100px;
	top: calc(50% - 3px);
	background: white;
	position: absolute;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f7 input[type="checkbox"]:focus ~ label:after { /* For focusing */
	box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	background: linear-gradient(0deg, #f3f9ff, #f4faff);
}

/* F8 */
.f8 label {
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	float: left;
	width: auto;
	border-radius: 6px;
}

.f8 label {
	float: left;
	/* font-weight: 600; */
	cursor: pointer;
	padding: 0 0.75em;
	color: #848484;
	user-select: none;
	font-size: 0.75em;
	line-height: 1.5em;
	width: auto;
	height: auto;
}

.f8 input[type="checkbox"] + *:after {
	font-family: 'Font Awesome 5 Free';
	line-height: 1.5em;
	transition: height 0.08s cubic-bezier(0, 1.13, 0.93, 0.82), top 0.08s cubic-bezier(0, 1.13, 0.93, 0.82);
	content: '\f00c';
	text-align: center;
	width: 100%;
	height: 100%;
	height: 0;
	position: absolute;
	overflow: hidden;
	font-weight: 600;
	opacity: 0;
	color: white;
	pointer-events: none;
	z-index: 999;
	border-radius: 6px;
	left: 0;
	background: var(--main-color);
	top: 100%;
	color: white;
	box-shadow: 0 0 0 1px var(--main-color);
}

.f8 input[type="checkbox"]:checked + *:after {
	top: 0;
	opacity: 1;
	height: 100%;
}

.f8 [type="checkbox"]:focus + *, .f8:hover [type="checkbox"] + * { /* For focusing */
  box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}


/* F9 */
.f9 label {
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	float: left;
	width: auto;
	border-radius: 6px;
}

.f9 label {
	float: left;
	cursor: pointer;
	padding: 0 0.75em 0 2.25em;
	color: #848484;
	user-select: none;
	font-size: 0.75em;
	line-height: 1.5em;
	width: auto;
	height: auto;
}

.f9 input[type="checkbox"] + *:after {
	font-family: 'Font Awesome 5 Free';
	line-height: 1.5em;
	transition: height 0.08s cubic-bezier(0, 1.13, 0.93, 0.82), top 0.08s cubic-bezier(0, 1.13, 0.93, 0.82);
	content: '\f00d';
	text-align: center;
	width: 100%;
	height: 100%;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
	position: absolute;
	overflow: hidden;
	pointer-events: none;
	z-index: 999;
	border-radius: 6px 0 0 6px;
	font-weight: 600;
	left: 0;
	width: 1.5em;
	top: 0;
}

.f9 input[type="checkbox"]:checked + *:after {
	background: var(--main-color);
	box-shadow: 0 0 0 1px var(--main-color);
	color: white;
	content: '\f00c';
}

.f9 [type="checkbox"]:focus + *, .f9:hover [type="checkbox"] + * { /* For focusing */
  box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

/* F10 */
.f10 .pseudo-checkbox {
	background: linear-gradient(0deg, #f6fbff, white);
	border-radius: 100px;
	cursor: pointer;
	transition: all 0.1s ease-out;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f10 input[type="checkbox"]:checked ~ label:after {
	font-family: 'Font Awesome 5 Free';
	line-height: 2.5em;
	content: '\f00c';
	text-align: center;
	width: 100%;
	height: 100%;
	font-size: 0.633em;
	background: var(--main-color);
	position: absolute;
	clip-path: circle(40%);
	border-radius: 100px;
	font-weight: 600;
	color: white;
	pointer-events: none;
	top: 0;
	z-index: 999;
	left: 0;
}

.f10 input[type="checkbox"]:focus ~ label, .f10:hover [type="checkbox"] ~ label { /* For focusing */
  box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
  background: linear-gradient(0deg, #f3f9ff, #f4faff);
}

.f10 [type="checkbox"]:checked ~ label {
  color: white;
  box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f10 svg {
	position: absolute;
	top: -0.65em;
	stroke-dasharray: 1000;
	stroke-dashoffset: 1000;
	left: -0.5em;
	z-index: 9999;
	pointer-events: none;
}

.f10 [type="checkbox"]:checked ~ svg {
	animation: dash 2s linear forwards;
}

/* F11 */
.f11 .pseudo-checkbox {
	background: linear-gradient(0deg, #f6fbff, white);
	cursor: pointer;
	transition: all 0.1s ease-out;
	box-shadow: rgba(0, 0, 0, 0.12) 0px 1px 1px 0px, rgba(52, 69, 69, 0.16) 0px 0px 0px 1px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
}

.f11 input[type="checkbox"]:checked ~ label:after {
	font-family: 'Font Awesome 5 Free';
	line-height: 2.5em;
	content: '';
	text-align: center;
	width: 100%;
	height: 100%;
	font-size: 0.633em;
	background: var(--main-color);
	position: absolute;
	border-radius: 6px;  
	box-shadow: none;
	font-weight: 600;
	color: white;
	pointer-events: none;
	top: 0;
	z-index: 999;
	left: 0;
}

.f11 input[type="checkbox"]:focus ~ label, .f11:hover [type="checkbox"] ~ label { /* For focusing */
  box-shadow: rgba(0,0,0,0.1) 0px 2px 2px 0px, var(--box-shadow-tint) 0px 0px 0px 2px, rgba(60, 66, 87, 0.08) 0px 2px 5px 0px;
  background: linear-gradient(0deg, #f3f9ff, #f4faff);
}

.f11 [type="checkbox"]:checked ~ label {
  color: white;
  box-shadow: none;
}

.f11 svg {
	position: absolute;
	top: 0.25em;
	stroke-dasharray: 1000;
	stroke-dashoffset: 1000;
	transform: scale3d(1.3, 1, 1);
	left: 0.25em;
	z-index: 9999;
	pointer-events: none;
}

.f11 [type="checkbox"]:checked ~ svg {
	animation: dash 2s linear forwards;
}


@keyframes dash {
	to {
	  stroke-dashoffset: 0;
	}
}
!

JS 

              
                const parent = function(el, match, last) {
    var result = [];
    for (var p = el && el.parentElement; p; p = p.parentElement) {
        result.push(p);
        if(p.matches(match)) {
            break;
        }
    }
    if(last == 1) {
        return result[result.length - 1];
    } else {
        return result;
    }
};

const alternativeSelections = function(item) {
    let parentEl = parent(item, '.checkbox-container', true);
    let value = item.getAttribute('data-value');
    if(item.classList.contains('active')) {
        item.classList.remove('active');
        parentEl.querySelector('input[type="checkbox"]').value = 'off';
    } else {
        item.classList.add('active');
        parentEl.querySelector('input[type="checkbox"]').value = 'on';
    }
    parentEl.setAttribute('data-value', value);
    parentEl.querySelector('input[type="hidden"]').value = value;
}

document.addEventListener("DOMContentLoaded", function(e) {
    document.querySelectorAll('.alt-selection').forEach(function(item) {
        item.addEventListener('click', function(e) {
            alternativeSelections(this);
        });
    });
    document.querySelectorAll('input[type="checkbox"]').forEach(function(item) {
        let parentEl = parent(item, '.checkbox-container', true);
        if(item.checked) {
            parentEl.setAttribute('data-value', 1);
            parentEl.querySelector('input[type="hidden"]').value = 1;
        } else {
            parentEl.setAttribute('data-value', 0);
            parentEl.querySelector('input[type="hidden"]').value = 0;
        }
        item.addEventListener('change', function(e) {
            let value = 0;
            let getValue = parseFloat(parentEl.getAttribute('data-value'));
            if(this.checked) {
                value = 1;
                if(parentEl.querySelector('.alt-selection') !== null) {
                    parentEl.querySelector('.alt-selection').classList.remove('active');
                }
            }
            parentEl.setAttribute('data-value', value);
            parentEl.querySelector('input[type="hidden"]').value = value;
        });
    });
    document.querySelectorAll('#colors > div').forEach(function(item) {
        item.addEventListener('click', function(e) {
            let mainColor = item.getAttribute('data-main-color');
            let boxShadow = item.getAttribute('data-box-shadow-tint');
            let highlight = item.getAttribute('data-light-highlight');
            console.log(mainColor);
            document.documentElement.style.setProperty("--main-color", mainColor)
            document.documentElement.style.setProperty("--box-shadow-tint", boxShadow)
            document.documentElement.style.setProperty("--light-highlight", highlight)
        });
    })
});
!
999px

Console