CSS Gooey Menu (Version 2)

css-gooey-menu-version-2.markdown

CSS Gooey Menu (Version 2)

Gooey menu with CSS and SVG filters. Version 2

A Pen by Med redha on CodePen.

License.

index.html

<h1>Gooey Menu</h1>
<h2>Using CSS and SVG Filters</h2>
<h3>By <a href="https://codepen.io/lbebber">Lucas Bebber</a></h3>
<h4><a href="https://codepen.io/lbebber/pen/LELBEo" target="_blank">Version 1</a> - Version 2 - <a href="https://codepen.io/lbebber/pen/pvwZJp" target="_blank">Version 3</a> - <a href="https://codepen.io/lbebber/pen/rawQKR" target="_blank">Version 4</a></h4>
<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>
  <a href="#" class="menu-item"> <i class="fa fa-ellipsis-h"></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" />
      <feComposite in2="shadow" in="goo" result="goo" />
      <feComposite 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" />
      <feComposite in2="goo" in="SourceGraphic" result="mix" />
    </filter>
  </defs>
</svg>

scripts

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>

style.scss

@import "compass/css3";

//vars
$fg: #e91e63;
$bg: #8bc34a;
$pi: 3.14;

//config
$menu-items: 6+1;
$open-distance: 105px;
$opening-angle: $pi * 2;

body {
  background: $bg;
  color: white;
  text-align: center;
}
a {
  color: inherit;
}
h1,
h2,
h3,
h4 {
  margin: 0;
  margin-bottom: 10px;
  margin-top: 10px;
}
h1 {
  font-size: 3em;
}
%goo {
  filter: url("#goo");
  // debug
  // background:rgba(255,0,0,0.2);
}
%ball {
  background: $fg;
  border-radius: 100%;
  width: 80px;
  height: 80px;
  margin-left: -40px;
  position: absolute;
  top: 20px;
  color: white;
  text-align: center;
  line-height: 80px;
  transform: translate3d(0, 0, 0);
  transition: transform ease-out 200ms;
}
.menu-open {
  display: none;
}
.menu-item {
  @extend %ball;
}
.hamburger {
  $width: 25px;
  $height: 3px;
  width: $width;
  height: $height;
  background: white;
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -$width/2;
  margin-top: -$height/2;
  transition: transform 200ms;
}
$hamburger-spacing: 8px;
.hamburger-1 {
  transform: translate3d(0, -$hamburger-spacing, 0);
}
.hamburger-2 {
  transform: translate3d(0, 0, 0);
}
.hamburger-3 {
  transform: translate3d(0, $hamburger-spacing, 0);
}
.menu-open:checked + .menu-open-button {
  .hamburger-1 {
    transform: translate3d(0, 0, 0) rotate(45deg);
  }
  .hamburger-2 {
    transform: translate3d(0, 0, 0) scale(0.1, 1);
  }
  .hamburger-3 {
    transform: translate3d(0, 0, 0) rotate(-45deg);
  }
}
.menu {
  @extend %goo;
  $width: 380px;
  $height: 250px;
  position: absolute;
  left: 50%;
  margin-left: -$width/2;
  padding-top: 20px;
  padding-left: $width/2;
  width: $width;
  height: $height;
  box-sizing: border-box;
  font-size: 20px;
  text-align: left;
}

.menu-item {
  &:hover {
    background: white;
    color: $fg;
  }
  @for $i from 1 through $menu-items {
    &:nth-child(#{$i + 2}) {
      transition-duration: 180ms;
    }
  }
}

.menu-open-button {
  @extend %ball;
  z-index: 2;
  transition-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transition-duration: 400ms;
  transform: scale(1.1, 1.1) translate3d(0, 0, 0);
  cursor: pointer;
}
.menu-open-button:hover {
  transform: scale(1.2, 1.2) translate3d(0, 0, 0);
}
.menu-open:checked + .menu-open-button {
  transition-timing-function: linear;
  transition-duration: 200ms;
  transform: scale(0.8, 0.8) translate3d(0, 0, 0);
}

.menu-open:checked ~ .menu-item {
  transition-timing-function: cubic-bezier(0.935, 0, 0.34, 1.33);
  @for $i from 1 through $menu-items {
    $angle: (($pi - $opening-angle)/2)+
      (($opening-angle/($menu-items - 1)) * ($i - 1));

    &:nth-child(#{$i + 2}) {
      transition-duration: 80ms+ (100ms * $i);
      transform: translate3d(
        cos($angle) * $open-distance,
        sin($angle) * $open-distance,
        0
      );
    }
  }
}