Hamburger 2

by Keith Jeter

HTML

<h1>Gooey Menu</h1>
<h2>Using CSS and SVG Filters</h2>

<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">

<nav class="menu">
  <input type="checkbox" href="#" class="menu-open" name="menu-open" id="menu-open"/>
  <label class="menu-open-button" for="menu-open">
    <span class="hamburger hamburger-1"></span>
    <span class="hamburger hamburger-2"></span>
    <span class="hamburger hamburger-3"></span>
  </label>
  
  <a href="#" class="menu-item"> <i class="fa fa-bar-chart"></i> </a>
  <a href="#" class="menu-item"> <i class="fa fa-plus"></i> </a>
  <a href="#" class="menu-item"> <i class="fa fa-heart"></i> </a>
  <a href="#" class="menu-item"> <i class="fa fa-envelope"></i> </a>
  <a href="#" class="menu-item"> <i class="fa fa-cog"></i> </a>

</nav>


<!-- filters -->
<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
    <defs>
      <filter id="shadowed-goo">
          
          <feGaussianBlur in="SourceGraphic" result="blur" stdDeviation="10" />
          <feColorMatrix in="blur" mode="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 18 -7" result="goo" />
          <feGaussianBlur in="goo" stdDeviation="3" result="shadow" />
          <feColorMatrix in="shadow" mode="matrix" values="0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 1 -0.2" result="shadow" />
          <feOffset in="shadow" dx="1" dy="1" result="shadow" />
          <feBlend in2="shadow" in="goo" result="goo" />
          <feBlend in2="goo" in="SourceGraphic" result="mix" />
      </filter>
      <filter id="goo">
          <feGaussianBlur in="SourceGraphic" result="blur" stdDeviation="10" />
          <feColorMatrix in="blur" mode="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 18 -7" result="goo" />
          <feBlend in2="goo" in="SourceGraphic" result="mix" />
      </filter>
    </defs>
</svg>

CSS

body {
  background: #3f51b5;
  color: white;
  text-align: center;
}

a {
  color: inherit;
}

h1, h2, h3, h4 {
  margin: 0;
  margin-bottom: 10px;
  margin-top: 10px;
}

h1 {
  font-size: 3em;
}

.menu {
  -webkit-filter: url("#shadowed-goo");
          filter: url("#shadowed-goo");
}

.menu-item, .menu-open-button {
  background: #ff4081;
  border-radius: 100%;
  width: 80px;
  height: 80px;
  margin-left: -40px;
  position: absolute;
  top: 20px;
  color: white;
  text-align: center;
  line-height: 80px;
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
  -webkit-transition: -webkit-transform ease-out 200ms;
  transition: -webkit-transform ease-out 200ms;
  transition: transform ease-out 200ms;
  transition: transform ease-out 200ms, -webkit-transform ease-out 200ms;
}

.menu-open {
  display: none;
}

.hamburger {
  width: 25px;
  height: 3px;
  background: white;
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -12.5px;
  margin-top: -1.5px;
  -webkit-transition: -webkit-transform 200ms;
  transition: -webkit-transform 200ms;
  transition: transform 200ms;
  transition: transform 200ms, -webkit-transform 200ms;
}

.hamburger-1 {
  -webkit-transform: translate3d(0, -8px, 0);
          transform: translate3d(0, -8px, 0);
}

.hamburger-2 {
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
}

.hamburger-3 {
  -webkit-transform: translate3d(0, 8px, 0);
          transform: translate3d(0, 8px, 0);
}

.menu-open:checked + .menu-open-button .hamburger-1 {
  -webkit-transform: translate3d(0, 0, 0) rotate(45deg);
          transform: translate3d(0, 0, 0) rotate(45deg);
}
.menu-open:checked + .menu-open-button .hamburger-2 {
  -webkit-transform: translate3d(0, 0, 0) scale(0.1, 1);
          transform: translate3d(0, 0, 0) scale(0.1, 1);
}
.menu-open:checked + .menu-open-button .hamburger-3 {
  -webkit-transform: translate3d(0, 0, 0) rotate(-45deg);
         ...