Cool Radial Toggle Menu with Gooey Effect

Preview:

Description:

A pure CSS radial menu concept which comes with a cool gooey effect based on SVG filters and several CSS3 properties.

How to use it:

Create a radial menu with a hamburger toggle button as follow:

<div class="wrap">
  <input type="checkbox" id="checking" style="display:none;" />
  <button class="blob">&#x2605;</button>
  <button class="blob">&#x2709;</button>
  <button class="blob">&#x2699;</button>
  <button class="blob">&#x2764;</button>
  <button class="blob">&#x270C;</button>
  <button class="blob">&#x270E;</button>
  <button class="blob">&#x266B;</button>
  <button class="blob">&#x2706;</button>
  <label class="blob" for="checking"> 
    <span class="bar"></span> 
    <span class="bar"></span> 
    <span class="bar"></span> 
  </label>
</div>

Create a SVG filter for the gooey effect.

<svg>
<defs>
  <filter id="filt">
    <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="filt" />
    <feBlend in2="filt" in="SourceGraphic" result="mix" />
  </filter>
</defs>
</svg>

The core CSS / CSS3 styles.

.bar {
  display: block;
  width: 40px;
  height: 5px;
  margin: 5px auto;
  background-color: #fff;
  border-radius: 2px;
  transition: all 0.4s linear 0.1s;
  -webkit-transition: all 0.4s linear 0.1s;
  -moz-transition: all 0.4s linear 0.1s;
  -o-transition: all 0.4s linear 0.1s;
  -ms-transition: all 0.4s linear 0.1s;
}

.bar:first-child { margin-top: 27px; }

.wrap {
  position: absolute;
  top: 20px;
  left: 20px;
  margin: auto;
  width: 150px;
  height: 100px;
  filter: url("#filt");
  -webkit-filter: url("#filt");
}

.wrap .blob {
  display: block;
  cursor: pointer;
  border: none;
  outline: none;
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  z-index: 10;
  background-color: #F44336;
  box-shadow: 0 0 10px 1px rgba(255, 255, 255, 0.3) inset;
  -webkit-box-shadow: 0 0 10px 1px rgba(255, 255, 255, 0.3) inset;
  -moz-box-shadow: 0 0 10px 1px rgba(255, 255, 255, 0.3) inset;
  -o-box-shadow: 0 0 10px 1px rgba(255, 255, 255, 0.3) inset;
  -ms-box-shadow: 0 0 10px 1px rgba(255, 255, 255, 0.3) inset;
}

.wrap .blob[for="checking"] {
  z-index: 30;
  font-size: 60px;
  text-align: center;
  color: #fff;
  transition: transform 0.5s ease-in-out 0.2s;
  -webkit-transition: -webkit-transform 0.5s ease-in-out 0.2s;
  -moz-transition: transform 0.5s ease-in-out 0.2s;
  -o-transition: transform 0.5s ease-in-out 0.2s;
  -ms-transition: transform 0.5s ease-in-out 0.2s;
}

.wrap .blob:not([for="checking"]) {
  width: 50px;
  height: 50px;
  top: 15px;
  left: 15px;
  font-size: 30px;
  transition: all 0.5s ease-in-out;
  -webkit-transition: all 0.5s ease-in-out;
  -moz-transition: all 0.5s ease-in-out;
  -o-transition: all 0.5s ease-in-out;
  -ms-transition: all 0.5s ease-in-out;
}

.wrap .blob:not([for="checking"]):hover {
  color: #F44336;
  animation: harlem 0.5s linear forwards;
  -webkit-animation: harlem 0.5s linear forwards;
  -moz-animation: harlem 0.5s linear forwards;
  -o-animation: harlem 0.5s linear forwards;
  -ms-animation: harlem 0.5s linear forwards;
}

.wrap > #checking:checked ~ .blob:nth-child(2) {
  margin-left: 85px;
  margin-top: 10px;
  background-color: #fff;
}

.wrap > #checking:checked ~ .blob:nth-child(3) {
  margin-top: 145px;
  margin-left: 65px;
  background-color: #fff;
}

.wrap > #checking:checked ~ .blob:nth-child(4) {
  margin-top: 160px;
  margin-left: 10px;
  background-color: #fff;
}

.wrap > #checking:checked ~ .blob:nth-child(5) {
  margin-top: 85px;
  margin-left: 10px;
  background-color: #fff;
}

.wrap > #checking:checked ~ .blob:nth-child(6) {
  margin-top: 63px;
  margin-left: 63px;
  background-color: #fff;
}

.wrap > #checking:checked ~ .blob:nth-child(7) {
  margin-top: 65px;
  margin-left: 145px;
  background-color: #fff;
}

.wrap > #checking:checked ~ .blob:nth-child(8) {
  margin-top: 112px;
  margin-left: 112px;
  background-color: #fff;
}

.wrap > #checking:checked ~ .blob:nth-child(9) {
  margin-top: 10px;
  margin-left: 160px;
  background-color: #fff;
}

.wrap > #checking:checked ~ .blob[for="checking"] > .bar:nth-child(1) {
  transform: rotate(45deg);
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  margin-top: 37px;
}

.wrap > #checking:checked ~ .blob[for="checking"] > .bar:nth-child(2) {
  transform: rotate(-45deg);
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  margin-top: -10px;
}

.wrap > #checking:checked ~ .blob[for="checking"] > .bar:nth-child(3) { opacity: 0; }

@keyframes 
harlem {  0% {
 transform: translate(0);
 -webkit-transform: translate(0);
 -moz-transform: translate(0);
 -o-transform: translate(0);
 -ms-transform: translate(0);
}
 25% {
 transform: translate(5px, 5px);
 -webkit-transform: translate(5px, 5px);
 -moz-transform: translate(5px, 5px);
 -o-transform: translate(5px, 5px);
 -ms-transform: translate(5px, 5px);
}
 50% {
 transform: translate(-5px, -5px);
 -webkit-transform: translate(-5px, -5px);
 -moz-transform: translate(-5px, -5px);
 -o-transform: translate(-5px, -5px);
 -ms-transform: translate(-5px, -5px);
}
 75% {
 transform: translate(2px, 2px);
 -webkit-transform: translate(2px, 2px);
 -moz-transform: translate(2px, 2px);
 -o-transform: translate(2px, 2px);
 -ms-transform: translate(2px, 2px);
}
 100% {
 transform: translate(0);
 -webkit-transform: translate(0);
 -moz-transform: translate(0);
 -o-transform: translate(0);
 -ms-transform: translate(0);
}
}

@-webkit-keyframes 
harlem {  0% {
 transform: translate(0);
 -webkit-transform: translate(0);
 -moz-transform: translate(0);
 -o-transform: translate(0);
 -ms-transform: translate(0);
}
 25% {
 transform: translate(5px, 5px);
 -webkit-transform: translate(5px, 5px);
 -moz-transform: translate(5px, 5px);
 -o-transform: translate(5px, 5px);
 -ms-transform: translate(5px, 5px);
}
 50% {
 transform: translate(-5px, -5px);
 -webkit-transform: translate(-5px, -5px);
 -moz-transform: translate(-5px, -5px);
 -o-transform: translate(-5px, -5px);
 -ms-transform: translate(-5px, -5px);
}
 75% {
 transform: translate(2px, 2px);
 -webkit-transform: translate(2px, 2px);
 -moz-transform: translate(2px, 2px);
 -o-transform: translate(2px, 2px);
 -ms-transform: translate(2px, 2px);
}
 100% {
 transform: translate(0);
 -webkit-transform: translate(0);
 -moz-transform: translate(0);
 -o-transform: translate(0);
 -ms-transform: translate(0);
}
}