.main-content
  h1
    | KNOW YOUR MENU
    small Hover on any menu item...
  .menu__wrapper
    div.menu__item--hamburger(tabindex="1")
      .line
      .line
      .line
    span Hamburger Menu
  .menu__wrapper
    div.menu__item--doner(tabindex="2")
      .line
      .line
      .line
    span Doner Menu
  .menu__wrapper
    div.menu__item--bento(tabindex="3")
      .box
      .box
      .box
      .box
      .box
      .box
      .box
      .box
      .box
    span Bento Menu
  .menu__wrapper
    div.menu__item--kebab(tabindex="4")
      .circle
      .circle
      .circle
      .circle
      .circle
    span Kebab Menu
  .menu__wrapper
    div.menu__item--meatball(tabindex="5")
      .circle
      .circle
      .circle
    span Meatball Menu
      
aside.context
  .explanation 
    | Idea by 
    a(href="https://twitter.com/michaelbabich/status/608618153757802497" target="_blank") @MichaelBabich,
    |  I'm just CSS-ing it.
    
footer
    a(href="https://twitter.com/meowlivia_" target="_blank")
      i.icon-social-twitter.icons
    a(href="https://github.com/oliviale" target="_blank")
      i.icon-social-github.icons
    a(href="https://dribbble.com/oliviale" target="_blank")
     i.icon-social-dribbble.icons
View Compiled
/** 
CSS Menu Icon Animation: Know Your Menu
A PEN BY Olivia Ng PRO
**/ 

body {
  background: #222;
  font-family: 'Comfortaa', sans-serif;
  color: #fff;
}

.main-content {
  max-width: 700px;
  margin: 8em auto 2em;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}


h1 {
  width: 100%;
  margin: 0 auto 1.5em;
  font-size: 30px;
  text-align: center;
  color: #fff;
  font-weight: 700;
  small {
    text-transform: none;
    display: block;
    margin: 20px 0;
    font: 400 20px 'Comfortaa', sans-serif;
    color: #999;
  }
}


.line,
.box {
  transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.line {
  height: 8px;
  width: 45px;
  background: #fff;
  margin: 5px auto;
}

.box {
  width: 10px;
  height: 10px;
  background: #fff;
  margin: 3px 3px;
  display: inline-block;
}

.circle {
  width: 12px;
  height: 12px;
  margin: 3px;
  background: #fff;
  border-radius: 50%;
  display: block;
}

.menu__wrapper {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  flex: 1;
  > div {
    width: 60px;
    height: 60px;
    padding: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    &:hover, &:focus {
      outline: none;
    }
  }
  > span {
    display: inline-block;
    text-align: center;
    line-height: 1.2;
    padding: 20px;
    margin-top: auto;
  }
}

.menu__item--hamburger {
  &:hover,
  &:focus {
    .line:nth-child(1) {
      transform: rotate(45deg) translate(12px, 12px);
    }
    .line:nth-child(2) {
      visibility: hidden;
    }
    .line:nth-child(3) {
      transform: rotate(-45deg) translate(15px, -16px);
    }
  }
}

.menu__item--doner {
  flex-direction: column;
  .line:nth-child(2) {
    width: 32px;
  }
  .line:nth-child(3) {
    width: 20px;
  }
  &:hover,
  &:focus {
    .line:nth-child(1) {
      transform: rotate(45deg) translate(12px, 12px);
    }
    .line:nth-child(2) {
      width: 20px;
      transform: rotate(-45deg) translate(-12px, -1.5px);
    }
    .line:nth-child(3) {
      transform: rotate(-45deg) translate(25px, -14px);
    }
  }
}

.menu__item--bento {
  &:hover,
  &:focus {
    .box:nth-child(2),
    .box:nth-child(4),
    .box:nth-child(6),
    .box:nth-child(8) {
      opacity: 0;
    }
  }
}

.menu__item--kebab {
  flex-direction: column;
  position: relative;
  transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
  .circle:nth-child(4),
  .circle:nth-child(5) {
    position: absolute;
    opacity: 0;
    top: 50%;
    margin-top: -6px;
    left: 50%;
  }
  .circle:nth-child(4) {
    margin-left: -25px;
  }
  .circle:nth-child(5) {
    margin-left: 13px;
  }
  &:hover,
  &:focus {
    transform: rotate(45deg);
    .circle {
      opacity: 1;
    }
  }
}

.menu__item--meatball {
  transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
  &:hover,
  &:focus {
    transform: rotate(45deg);
  }
}


aside.context {
  text-align: center;
  color: #fff;
  a {
    text-decoration: none;
    color: #fff;
    padding: 3px 0;
    border-bottom: 1px dashed;
  }
  .explanation {
    max-width: 700px;
    margin: 6em auto 0;
  }
}

footer {
  text-align: center;
  margin: 4em auto;
  width: 100%;
  a {
    text-decoration: none;
    display: inline-block;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: transparent;
    border: 1px dashed #fff;
    color: #fff;
    margin: 5px;
    &:hover {
      background: rgba(255, 255, 255, 0.1);
    }
    .icons {
      margin-top: 12px;
      display: inline-block;
      font-size: 20px;
    }
  }
}
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