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HTML 

              
                <div class="container">
  <section>
    <header>
      <h1>Pure <strong>CSS</strong> Icons</h1>
      <h2>just playing :P</h2>
    </header>
    <article>
      <h3>Some burger <strong>mutations</strong></h3>
      <div class="circle">
        <span class="burger cross"><span class="middle"></span></span>
      </div>
      <div class="circle">
        <span class="burger arrow left"><span class="middle"></span></span>
      </div>
      <div class="circle">
        <span class="burger arrow"><span class="middle"></span></span>
      </div>
      <div class="circle">
        <span class="burger dots"><span class="middle"></span></span>
      </div>
    </article>
    <article>
      <h3>Some <strong>css</strong> icons</h3>
      <div class="circle active">
        <span class="burger triangle"><span class="middle"></span></span>
      </div>
      <div class="circle active">
        <span class="burger user"><span class="middle"></span></span>
      </div>
      <div class="circle active">
        <span class="burger mail"><span class="middle"></span></span>
      </div>
      <div class="circle active">
        <span class="burger tick"><span class="middle"></span></span>
      </div>
      <div class="circle active">
        <span class="burger wifi"><span class="middle"></span></span>
      </div>
      <div class="circle active">
        <span class="burger cloud"><span class="middle"></span></span>
      </div>
    </article>
  </section>
</div>
!

CSS 

              
                @import "compass/reset";
@import "compass/css3";
@import url(https://fonts.googleapis.com/css?family=Open+Sans:700,300);

$maxScreen: 640px;

$cyan: #57CAF4;
$red: #EC008C;
$green: #0FEC00;
$lime: #ECED52;
$teal: #00ECE0;

$dark: #424242;

$slowSpeed: 0.8s;
$hoverSpeed: 0.4s;
body,
html {
    height: 100%;
}

body {
    text-align: center;
    font-family: 'Open Sans', sans-serif;
    font-weight: 300;
    font-size: 16px;
    background: #d0d0d0;
    color: #444444;
}

h1 {
    font-size: 2.5em;
  	margin: 1em 0 0.5em;
}

h2 {
    margin-bottom: 3em;
}

p {
    margin-bottom: 1em;
}

strong {
    font-weight: 700;
}

div {
    position: relative;
}

input {
    display: none;
}

article {
	h3 {
		font-size: 1.5em;
		margin-bottom: 1.5em;
		padding-bottom: 1.5em;
		border-bottom: 1px solid $dark;
	}
	padding: 2em;
	max-width: 470px;
	text-align: center;
	// background-color: $green;
	margin-bottom: 2em;
}

.container {
    height: 100%;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    -moz-align-items: center;
    align-items: center;
    -webkit-justify-content: flex-start;
    -moz-justify-content: flex-start;
    justify-content: flex-start;
    -webkit-box-orient: vertical;
    -moz-box-orient: vertical;
    -webkit-box-direction: normal;
    -moz-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-pack: center;
    -moz-box-pack: center;
}

.burger {
    width: 4em;
    height: 4em;
    display: inline-block;
    position: relative;
    @include transition(all $hoverSpeed ease-in-out);
    @include transition-timing-function(cubic-bezier(0.61, 0.04, 0.17, 1.32));
    .middle {
        left: -0.25em;
        top: 50%;
        width: 4.5em;
        height: 0.5em;
        position: absolute;
        margin-top: -0.25em;
        display: inline-block;
        @include border-radius(0.5em);
        @include transition(all $hoverSpeed ease-in-out);
        background: $cyan;
    }
    &:after,
    &:before {
        content: "";
        width: 4.5em;
        height: 0.5em;
        left: -0.25em;
        position: absolute;
        @include border-radius(0.5em);
        background: $cyan;
        @include transform-origin(50%, 50%, 0);
        @include transition(all $hoverSpeed ease-in-out);
    }
    &:after {
        bottom: 0;
    }
    &:before {
        top: 0;
    }
}

.circle {
    font-size: 0.5em;
    width: 4em;
    height: 4em;
    line-height: 1em;
    padding: 5em;
    margin: 0 auto 0.6em;
    display: inline-block;
    position: relative;
    @include border-radius(50%);
    background-color: white;
    @include transition(all $hoverSpeed ease-in-out);
    &:before {
        content: "";
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        display: inline-block;
        position: absolute;
        z-index: 0;
        @include border-radius(50%);
        background-color: rgba(255,255,255,0.4);
    }
    &.active,
    &:hover {
        cursor: pointer;
        &:before {
            @include animation(pointer-ball ($hoverSpeed * 0.75) ease 1);
            @include animation-timing-function(cubic-bezier(0.61, 0.04, 0.17, 1.32));
        }
        .burger {
            @include transform(rotateZ(360deg));
            &.cross {
            	.middle, &:after, &:before {
	                background: $red;
	            }
	            .middle {
	                opacity: 0;
	            }
	            &:after {
	                bottom: 1.75em;
	                @include transform(rotate(135deg));
	            }
	            &:before {
	                top: 1.75em;
	                @include box-shadow(0 0 0 white);
	                @include transform(rotate(45deg));
	            }
            }
            &.arrow {
                .middle, &:after, &:before {
                    background: $green;
                }
                .middle {
                    opacity: 1;
                }
                &:after {
                    bottom: 0.6em;
                    width: 3em;
                    @include transform(translateX(1.7em) rotate(135deg));
                }
                &:before {
                    top: 0.6em;
                    width: 3em;
                    @include transform(translateX(1.7em) rotate(-135deg));
                }
                &.left {
                    @include transform(rotateZ(-360deg));
                    &:after {
                        @include transform(translateX(-0.2em) rotate(45deg));
                    }
                    &:before {
                        @include transform(translateX(-0.2em) rotate(-45deg));
                    }
                }
            }
            &.triangle {
                .middle, &:after, &:before {
                    background: $red;
                }
                .middle {
                    opacity: 1;
                    top: 95%;
                }
                &:after {
                	bottom: 1.75em;
                    @include transform(translateX(1em) rotate(60deg));
                }
                &:before {
                	top: 1.75em;
                    @include transform(translateX(-1em) rotate(-60deg));
                }
            }
            &.dots {
                .middle, &:after, &:before {
                    width: 0.75em;
                    height: 0.75em;
                    margin-top: -0.5em;
                    background: $green;
                }
                .middle {
                    opacity: 1;
                    left: 1.7em;
                }
                &:after {
                    bottom: 1.7em;
                    @include transform(translateX(3.7em) rotate(0deg));
                }
                &:before {
                    top: 2em;
                    @include transform(translateX(0) rotate(0deg));
                }
            }
            &.tick {
                .middle, &:after, &:before {
                    background: $dark;
                }
                .middle {
                    opacity: 0;
                    left: 1.7em;
                }
                &:after {
                	left: 0;
                    bottom: 0;
                    width: 2em;
                    @include transform-origin(100%, 50%, 0);
                    @include transform(translateX(-0.4em) rotate(45deg));
                }
                &:before {
                    top: 94%;
                    width: 3.7em;
                    @include transform-origin(0%, 0%, 0);
                    @include transform(translateX(1.5em) rotate(-45deg));
                }
            }
            &.wifi {
                .middle, &:after, &:before {
                	font-size: 1.2em;
                	left: -1.4em;
                    top: 0.5em;
                    width: 5em;
                    height: 5em;
                    border: 0.5em solid $dark;
                    border-left-color: transparent;
                    border-right-color: transparent;
                    border-bottom-color: transparent;
                    @include border-radius(50%);
                    background-color: transparent;
                }
                .middle {
                    opacity: 1;
                }
                &:after {
                    left: -0.35em;
                    top: 1.2em;
                    width: 3em;
                    height: 3em;
                    @include transform(translateX(0) rotate(0deg));
                }
                &:before {
                    left: 0.65em;
                    top: 2.23em;
                    width: 1em;
                    height: 1em;
                    @include transform(translateX(0) rotate(0deg));
                }
            }
            &.user {
                .middle, &:after, &:before {
                    margin-top: -0.5em;
                    border: 0.5em $dark solid;
                    background-color: white;
                    @include border-radius(50%);
                    @include transition(none);
                }
                .middle {
                    opacity: 1;
                    top: -0.1em;
                    left: 0em;
                    width: 3em;
                    height: 3em;
                    margin: 0;
                    z-index: 1;
                }
                &:after {
                    top: 2.9em;
                    left: -1em;
                    width: 5em;
                    height: 5em;
                    margin: 0;
                    z-index: 0;
                    border-left-color: transparent;
                    border-right-color: transparent;
                    border-bottom-color: transparent;
                    background-color: transparent;
                    @include transform(translateX(0) rotate(0deg));
                }
                &:before {
                	opacity: 0;
                    @include transform(translateX(0) rotate(0deg));
                }
            }
            &.mail {
                .middle, &:after, &:before {
                    margin-top: -0.5em;
                    border: 0.5em $dark solid;
                    background-color: white;
                    @include border-radius(0.5em);
                	@include transition(none);
                }
                .middle {
                	text-align: center;
                	&:before {
                		content: "5";
                		// font-weight: 700;
                		display: inline-block;
                		color: white;
                		line-height: 2em;
                		font-size: 1.5em;
                	}
                    top: -2em;
                    right: -3em;
                    left: auto;
                    width: 3em;
                    height: 3em;
                    margin: 0;
                    z-index: 1;
                    @include border-radius(50%);
                    border-color: white;
                    background-color: $red;
                }
                &:after {
                    top: 0em;
                    left: -0.5em;
                    width: 4em;
                    height: 3em;
                    margin: 0;
                    z-index: 0;
                    @include transform(translateX(0) rotate(0deg));
                }
                &:before {
                	top: -1.5em;
                    left: 0.2em;
                    width: 2.7em;
                    height: 2.7em;
                    margin: 0;
                    z-index: 1;
                    border-left-color: transparent;
                    border-top-color: transparent;
                    background-color: transparent;
                    @include transform(translateX(0) rotate(45deg));
                }
            }
            &.cloud {
                .middle, &:after, &:before {
                    margin-top: -0.5em;
                    border: 0.5em $dark solid;
                    background-color: white;
                    @include border-radius(0.5em);
                	@include transition(none);
                }
                .middle {
                    top: 0.6em;
                    right: -1em;
                    left: auto;
                    width: 2.5em;
                    height: 2.5em;
                    margin: 0;
                    z-index: 2;
					border-left-color: transparent;
					border-top-color: transparent;
                    background-color: transparent;
                    @include border-radius(50%);
                    @include transform(rotate(-89deg));
                }
                &:after {
                    top: 1em;
                    left: -1em;
                    width: 5em;
                    height: 2em;
                    margin: 0;
                    z-index: 0;
                    border-right-color: transparent;
  					border-top-color: transparent;
                    @include border-radius(2em);
                    @include transform(translateX(0) rotate(0deg));
                }
                &:before {
                	top: -0.3em;
                    left: -0.7em;
                    width: 2.5em;
                    height: 2.5em;
                    margin: 0;
                    z-index: 1;
                    @include border-radius(50%);
                    border-left-color: transparent;
					border-top-color: transparent;
					background-color: transparent;
                    @include transform(translateX(0) rotate(205deg));
                }
            }
        }
    }
}

@-webkit-keyframes pointer-ball {
    0%, 100% {
        @include transform(scale(1));
    }
    80% {
        @include transform(scale(2));
    }
    100% {
        opacity: 0;
    }
}


@-moz-keyframes pointer-ball {
    0%, 100% {
        @include transform(scale(1));
    }
    80% {
        @include transform(scale(2));
    }
    100% {
        opacity: 0;
    }
}

@keyframes pointer-ball {
    0%, 100% {
        @include transform(scale(1));
    }
    80% {
        @include transform(scale(2));
    }
    100% {
        opacity: 0;
    }
}
!

JS
!
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