CodePen Embed - Half Second Hamburger Helper

<button id="bam">Click Me!</button>
<section class="container">
  <!-- input:checked along with the + and ~  selectors can be used to watch for a state change with CSS-->
  <input type="checkbox" id="menu1" />
  <label for="menu1">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu2" />
  <label for="menu2">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu3" />
  <label for="menu3">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu4" />
  <label for="menu4">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu5" />
  <label for="menu5">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu6" />
  <label for="menu6">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu7" />
  <label for="menu7">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu8" />
  <label for="menu8">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu9" />
  <label for="menu9">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu10" />
  <label for="menu10">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu11" />
  <label for="menu11">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu12" />
  <label for="menu12">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu13" />
  <label for="menu13">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu14" />
  <label for="menu14">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu15" />
  <label for="menu15">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu16" />
  <label for="menu16">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu17" />
  <label for="menu17">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu18" />
  <label for="menu18">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu19" />
  <label for="menu19">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu20" />
  <label for="menu20">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu21" />
  <label for="menu21">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu22" />
  <label for="menu22">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu23" />
  <label for="menu23">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu24" />
  <label for="menu24">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu25" />
  <label for="menu25">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu26" />
  <label for="menu26">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu27" />
  <label for="menu27">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu28" />
  <label for="menu28">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu29" />
  <label for="menu29">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu30" />
  <label for="menu30">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu31" />
  <label for="menu31">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu32" />
  <label for="menu32">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu33" />
  <label for="menu33">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu34" />
  <label for="menu34">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu35" />
  <label for="menu35">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu36" />
  <label for="menu36">
  <div></div>
  <div></div>
  <div></div>
</label>

  <input type="checkbox" id="menu37" />
  <label for="menu37">
  <div></div>
  <div></div>
  <div></div>
</label>

</section>
<!-- / container -->

/* 
Setting up the Pen
===================================

Specific styles below

*/

$bg-clr: #fff;
$icn-clr: #000;

body {
  text-align: center;
  background: $bg-clr;
}

b {
  position: absolute;
  top: 40px;
  text-align: center;
  z-index: -1;
}

#bam {
  display: inline-block;
  width: 100px;
  margin-top: 10px;
  padding: 5px;
  border-bottom: 4px solid lighten($icn-clr, 10%);
  border-radius: 10px;
  background: $icn-clr;
  color: $bg-clr;
  cursor: pointer;
  position: absolute;
  left: calc(50% - 40px);
  top: 10px;
  transition: all .25s;
  
  &:focus {
    outline: none;
    transform: scale(1.05);
  }
  
  &:hover {
    border-bottom: 6px solid lighten($icn-clr, 10%);
    top: 8px;
  }

  &:active {
    border-bottom: 1px solid lighten($icn-clr, 10%);
    top: 13px;
  }
}

.container {
  margin-top: 50px;
  text-align: center;
}

/* 
  General styles for all menus 
  Default State
====================================
*/

input {
  display: none;
}

label {
  position: relative;
  width: 50px;
  height: 40px;
  display: inline-block;
  cursor: pointer;
  margin: 1.7em;
  transition: all .5s;
  text-align: left;
}

div,
div:before,
div:after {
  background: $icn-clr;
  position: absolute;
  height: 5px;
  width: 50px;
  border-radius: 4px;
  transition: all .5s;
}

label {
  div:first-child {
    top: 0px;
  }
  div:nth-child(2) {
    top: 10px;
  }
  div:nth-child(3) {
    top: 20px;
  }
}


/* 
  Specific styles for each menu
====================================
*/

// The + selector targets the sibling immediately after, in CSS3 the ~ slector can be used to target a sibling later in the html document not just immediately after
// This CSS will only triger when the label is after a checkbox with an id of menu1 that is checked, if the checkbox is not checked it goes back to the previous default state CSS
// The animations occur because of the transition property applied above

#menu1:checked+label {
  div:first-child {
    opacity: 0;
    top: 20px;
    width: 0px;
    transform: rotate(225deg);
  }
  div:nth-child(2) {
    top: 12px;
    transform: rotate(-315deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 12px;
    transform: rotate(495deg);
    width: 35px;
  }
}

#menu2:checked+label {
  div:first-child {
    opacity: 0;
    top: 20px;
    width: 0px;
    transform: rotate(-45deg);
  }
  div:nth-child(2) {
    top: 12px;
    transform: rotate(-45deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 12px;
    transform: rotate(45deg);
    width: 35px;
  }
}

#menu3:checked+label {
  div:first-child {
    top: 10px;
    left: 12px;
    height: 20px;
    width: 20px;
    transform: rotate(-45deg);
    background: rgba(255, 255, 255, 0);
    border-left: 5px solid $icn-clr;
    border-bottom: 5px solid $icn-clr;
  }
  div:nth-child(2) {
    top: 0px;
    left: 7px;
    transform: rotate(-225deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 0px;
    left: 7px;
    transform: rotate(45deg);
    width: 35px;
  }
  div:nth-child(3):before {
    content: "";
    top: 16px;
    left: 23px;
    opacity: 1;
    transform: rotate(45deg);
    display: block;
    background: $icn-clr;
    position: absolute;
    height: 5px;
    width: 21px;
    transition: all .5s;
  }
}

#menu4:checked+label {
  div:first-child {
    top: 14px;
    left: 12px;
    height: 20px;
    width: 20px;
    transform: rotate(-45deg);
    background: rgba(255, 255, 255, 0);
    border-right: 5px solid $icn-clr;
    border-top: 5px solid $icn-clr;
  }
  div:nth-child(2) {
    top: 0px;
    left: 7px;
    transform: rotate(-225deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 0px;
    left: 7px;
    transform: rotate(45deg);
    width: 35px;
  }
  div:nth-child(3):before {
    content: "";
    top: 16px;
    left: 23px;
    opacity: 1;
    transform: rotate(45deg);
    display: block;
    background: $icn-clr;
    position: absolute;
    height: 5px;
    width: 21px;
    transition: all .5s;
  }
}

#menu5+label {
  div:first-child:before {
    content: "";
    top: 0px;
    left: 34px;
    height: 0px;
    width: 0px;
    transform: rotate(0deg);
    background: rgba(255, 255, 255, 0);
    border-right: 0px solid $icn-clr;
    border-top: 0px solid $icn-clr;
  }
  div:first-child:after {
    content: "";
    top: 0px;
    left: -1px;
    height: 0px;
    width: 0px;
    transform: rotate(0deg);
    background: rgba(255, 255, 255, 0);
    border-right: 0px solid $icn-clr;
    border-top: 0px solid $icn-clr;
  }
}

#menu5:checked+label {
  div:first-child {
    top: 14px;
    left: 12px;
    height: 20px;
    width: 20px;
    transform: rotate(-45deg);
    background: rgba(255, 255, 255, 0);
    border-right: 5px solid $icn-clr;
    border-top: 5px solid $icn-clr;
  }
  div:nth-child(2) {
    top: 0px;
    left: 7px;
    transform: rotate(-225deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 0px;
    left: 7px;
    transform: rotate(45deg);
    width: 35px;
  }
}

#menu6+label {
  div:nth-child(2) {
    left: 0px;
  }
  div:first-child:before,
  div:first-child:after {
    content: "";
    width: 5px;
    height: 0px;
  }
  div:first-child:after {
    left: 45px;
  }
}

#menu6:checked+label {
  div:first-child:before {
    content: "";
    width: 5px;
    height: 25px;
  }
  div:first-child:after {
    content: "";
    width: 5px;
    height: 25px;
    left: 45px;
  }
  div:nth-child(2) {
    top: 10px;
    left: 12px;
    width: 25px;
  }
}

#menu7:checked+label {
  div:first-child {
    top: 10px;
  }
  div:nth-child(2) {
    transform: rotate(990deg);
  }
  div:nth-child(3) {
    top: 10px;
  }
}

#menu8:checked+label {
  div:first-child {
    top: 10px;
  }
  div:nth-child(2) {
    transform: rotate(1080deg);
  }
  div:nth-child(3) {
    top: 10px;
  }
}

#menu9+label {
  div:nth-child(3),
  div:nth-child(2) {
    left: 0px;
  }
}

#menu9:checked+label {
  div:first-child {
    height: 36px;
    top: -3px;
  }
  div:nth-child(2) {
    background: none;
    border: 2px solid $bg-clr;
    height: 15px;
    top: 2px;
    left: 3px;
    width: 25px;
  }
  div:nth-child(3) {
    background: none;
    border: 2px solid $bg-clr;
    height: 15px;
    width: 25px;
    top: 10px;
    left: 18px;
  }
}

#menu10+label {
  div:nth-child(2) {
    left: 0px;
    z-index: 2;
  }
}

#menu10:checked+label {
  div:first-child {
    height: 36px;
    top: -3px;
    border-radius: 50%;
  }
  div:nth-child(2) {
    background: $bg-clr;
    transform: rotate(360deg);
    height: 5px;
    top: 13px;
    left: 7px;
    width: 35px;
    z-index: 2;
  }
  div:nth-child(3) {
    height: 36px;
    top: -3px;
    z-index: 1;
    border-radius: 50%;
  }
}

#menu11+label {
  div:nth-child(3):after {
    height: 20px;
    width: 20px;
    transform: rotate(-135deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: 15px;
    top: 10px;
    border-radius: 0px;
  }
}

#menu11:checked+label {
  div:first-child {
    height: 20px;
    width: 20px;
    transform: rotate(45deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: 15px;
    top: -20px;
    border-radius: 0px;
  }
  div:nth-child(2) {
    height: 20px;
    width: 20px;
    transform: rotate(135deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: 36px;
    top: 1px;
    border-radius: 0px;
  }
  div:nth-child(3) {
    height: 20px;
    width: 20px;
    transform: rotate(-45deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: -5px;
    top: 0px;
    border-radius: 0px;
  }
  div:nth-child(3):after {
    content: "";
    height: 20px;
    width: 20px;
    transform: rotate(-90deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: -2px;
    top: 30px;
    border-radius: 0px;
  }
}

#menu12+label {
  div:nth-child(3):after {
    height: 20px;
    width: 20px;
    transform: rotate(-135deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: 15px;
    top: 10px;
    border-radius: 0px;
  }
}

#menu12:checked+label {
  div:first-child {
    height: 20px;
    width: 20px;
    transform: rotate(405deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: 15px;
    top: -15px;
    border-radius: 0px;
  }
  div:nth-child(2) {
    height: 20px;
    width: 20px;
    transform: rotate(495deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: 30px;
    top: 0px;
    border-radius: 0px;
  }
  div:nth-child(3) {
    height: 20px;
    width: 20px;
    transform: rotate(-405deg);
    background: none;
    border-bottom: 4px solid $icn-clr;
    border-right: 4px solid $icn-clr;
    left: 0px;
    top: 0px;
    border-radius: 0px;
  }
  div:nth-child(3):after {
    content: "";
    height: 20px;
    width: 20px;
    transform: rotate(-450deg);
    background: none;
    border-bottom: 5px solid $icn-clr;
    border-right: 5px solid $icn-clr;
    left: 0px;
    top: 20px;
    border-radius: 0px;
  }
}

#menu13:checked+label {
  div:first-child {
    opacity: 1;
    top: 30px;
    width: 35px;
    border-radius: 0% 0% 50% 50%;
    transform: rotate(360deg);
  }
  div:nth-child(2) {
    top: 12px;
    transform: rotate(-315deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 12px;
    transform: rotate(495deg);
    width: 35px;
  }
}

#menu14:checked+label {
  div:first-child {
    opacity: 1;
    top: 30px;
    width: 35px;
    border-radius: 0% 0% 50% 50%;
  }
  div:nth-child(2) {
    top: 12px;
    transform: rotate(45deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 12px;
    transform: rotate(-45deg);
    width: 35px;
  }
}

#menu15+label {
  div {
    left: 0px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 0;
  }
}

#menu15:checked+label {
  div:first-child {
    top: 10px;
    left: 15px;
    transform: rotate(45deg);
  }
  div:nth-child(2) {
    top: 10px;
    left: 3px;
    width: 22px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 1;
    transform: rotate(45deg);
    background: none;
    border-left: 5px solid $icn-clr;
    border-bottom: 5px solid $icn-clr;
    border-radius: 0px;
    height: 15px;
    width: 15px;
    top: -7px;
  }
  div:nth-child(3) {
    top: 10px;
    left: 15px;
    transform: rotate(-45deg);
  }
}

#menu16+label {
  div {
    left: 0px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 0;
  }
}

#menu16:checked+label {
  div:first-child {
    top: 10px;
    left: 15px;
    transform: rotate(405deg);
  }
  div:nth-child(2) {
    top: 10px;
    left: 3px;
    width: 22px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 1;
    transform: rotate(405deg);
    background: none;
    border-left: 5px solid $icn-clr;
    border-bottom: 5px solid $icn-clr;
    border-radius: 0px;
    height: 15px;
    width: 15px;
    top: -7px;
  }
  div:nth-child(3) {
    top: 10px;
    left: 15px;
    transform: rotate(-405deg);
  }
}

#menu17+label {
  div {
    left: 0px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 0;
  }
}

#menu17:checked+label {
  div:first-child {
    top: 10px;
    left: 15px;
    transform: rotate(-45deg);
  }
  div:nth-child(2) {
    top: 10px;
    left: 3px;
    width: 22px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 1;
    transform: rotate(45deg);
    background: none;
    border-top: 5px solid $icn-clr;
    border-right: 5px solid $icn-clr;
    border-radius: 0px;
    height: 15px;
    width: 15px;
    top: -7px;
  }
  div:nth-child(3) {
    top: 10px;
    left: 15px;
    transform: rotate(45deg);
  }
}

#menu18+label {
  div {
    left: 0px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 0;
  }
}

#menu18:checked+label {
  div:first-child {
    top: 10px;
    left: 15px;
    transform: rotate(-405deg);
  }
  div:nth-child(2) {
    top: 10px;
    left: 3px;
    width: 22px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 1;
    transform: rotate(405deg);
    background: none;
    border-top: 5px solid $icn-clr;
    border-right: 5px solid $icn-clr;
    border-radius: 0px;
    height: 15px;
    width: 15px;
    top: -7px;
  }
  div:nth-child(3) {
    top: 10px;
    left: 15px;
    transform: rotate(405deg);
  }
}

#menu19+label {
  div {
    left: 0px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 0;
  }
}

#menu19:checked+label {
  div:first-child {
    top: 10px;
    left: 0px;
    transform: rotate(-45deg);
  }
  div:nth-child(2) {
    top: 10px;
    left: 40px;
    width: 22px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 1;
    transform: rotate(45deg);
    background: none;
    border-top: 5px solid $icn-clr;
    border-right: 5px solid $icn-clr;
    border-radius: 0px;
    height: 15px;
    width: 15px;
    top: -7px;
  }
  div:nth-child(3) {
    top: 10px;
    left: 0px;
    transform: rotate(45deg);
  }
}

#menu20+label {
  div {
    left: 0px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 0;
  }
}

#menu20:checked+label {
  div:first-child {
    top: 10px;
    left: 0px;
    transform: rotate(-405deg);
  }
  div:nth-child(2) {
    top: 10px;
    left: 40px;
    width: 22px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 1;
    transform: rotate(405deg);
    background: none;
    border-top: 5px solid $icn-clr;
    border-right: 5px solid $icn-clr;
    border-radius: 0px;
    height: 15px;
    width: 15px;
    top: -7px;
  }
  div:nth-child(3) {
    top: 10px;
    left: 0px;
    transform: rotate(405deg);
  }
}

#menu21+label {
  div {
    left: 0px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 0;
  }
}

#menu21:checked+label {
  div:first-child {
    top: 10px;
    left: 0px;
    transform: rotate(-45deg);
  }
  div:nth-child(2) {
    top: 10px;
    left: 40px;
    width: 22px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 1;
    transform: rotate(45deg);
    background: none;
    border-bottom: 5px solid $icn-clr;
    border-left: 5px solid $icn-clr;
    border-radius: 0px;
    height: 15px;
    width: 15px;
    top: -7px;
  }
  div:nth-child(3) {
    top: 10px;
    left: 0px;
    transform: rotate(45deg);
  }
}

#menu22+label {
  div {
    left: 0px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 0;
  }
}

#menu22:checked+label {
  div:first-child {
    top: 10px;
    left: 0px;
    transform: rotate(-405deg);
  }
  div:nth-child(2) {
    top: 10px;
    left: 40px;
    width: 22px;
  }
  div:nth-child(2):before {
    content: "";
    opacity: 1;
    transform: rotate(405deg);
    background: none;
    border-bottom: 5px solid $icn-clr;
    border-left: 5px solid $icn-clr;
    border-radius: 0px;
    height: 15px;
    width: 15px;
    top: -7px;
  }
  div:nth-child(3) {
    top: 10px;
    left: 0px;
    transform: rotate(405deg);
  }
}

#menu23:checked+label {
  div:first-child {
    top: -10px;
    left: -7px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
  }
  div:nth-child(2) {
    top: 12px;
    transform: rotate(-315deg);
    width: 35px;
    background: $bg-clr;
  }
  div:nth-child(3) {
    top: 12px;
    transform: rotate(495deg);
    width: 35px;
    background: $bg-clr;
  }
}

#menu24:checked+label {
  div:first-child {
    top: -10px;
    left: -7px;
    width: 40px;
    height: 40px;
    background: none;
    border: 5px solid $icn-clr;
    border-radius: 50%;
  }
  div:nth-child(2) {
    top: 12px;
    transform: rotate(-45deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 12px;
    transform: rotate(45deg);
    width: 35px;
  }
}

#menu25:checked+label {
  div:first-child {
    top: -10px;
    left: -7px;
    width: 40px;
    height: 40px;
    background: none;
    border: 5px solid $icn-clr;
    border-radius: 50%;
  }
  div:nth-child(2) {
    top: 12px;
    transform: rotate(-180deg);
    width: 35px;
  }
  div:nth-child(3) {
    top: 12px;
    transform: rotate(180deg);
    width: 35px;
  }
}

#menu26:checked+label {
  div:first-child {
    top: 12px;
    transform: rotate(-540deg);
    width: 35px;
    background: $bg-clr;
    z-index: 1;
  }
  div:nth-child(2) {
    top: -10px;
    left: -7px;
    width: 40px;
    height: 40px;
    border: 5px solid $icn-clr;
    border-radius: 50%;
  }
  div:nth-child(3) {
    top: 12px;
    transform: rotate(540deg);
    width: 35px;
    background: $bg-clr;
  }
}

#menu27:checked+label {
  div:first-child {
    top: 12px;
    transform: rotate(180deg);
    width: 35px;
    background: $bg-clr;
    z-index: 1;
  }
  div:nth-child(2) {
    top: -10px;
    left: -7px;
    width: 40px;
    height: 40px;
    border: 5px solid $icn-clr;
    border-radius: 50%;
  }
  div:nth-child(3) {
    top: 2px;
    left: 2px;
    transform: rotate(45deg);
    height: 20px;
    width: 20px;
    background: none;
    border-left: 5px solid $bg-clr;
    border-bottom: 5px solid $bg-clr;
  }
}

#menu28:checked+label {
  div:first-child {
    top: 12px;
    transform: rotate(-180deg);
    width: 35px;
    background: $bg-clr;
    z-index: 1;
  }
  div:nth-child(2) {
    top: -10px;
    left: -7px;
    width: 40px;
    height: 40px;
    border: 5px solid $icn-clr;
    border-radius: 50%;
  }
  div:nth-child(3) {
    top: 2px;
    left: 8px;
    transform: rotate(45deg);
    height: 20px;
    width: 20px;
    background: none;
    border-right: 5px solid $bg-clr;
    border-top: 5px solid $bg-clr;
  }
}

#menu29:checked+label {
  div:first-child {
    top: 12px;
    left: -9px;
    transform: rotate(-225deg);
    width: 53px;
    background: $bg-clr;
    z-index: 1;
  }
  div:nth-child(2) {
    top: -10px;
    left: -7px;
    width: 40px;
    height: 40px;
    border: 5px solid $icn-clr;
    border-radius: 50%;
  }
  div:nth-child(3) {
    top: 12px;
    left: -9px;
    transform: rotate(-225deg);
    width: 53px;
    background: $bg-clr;
    z-index: 1;
  }
}

#menu30:checked+label {
  div:first-child {
    top: 10px;
    left: -9px;
    transform: rotate(-225deg);
    width: 48px;
    background: $icn-clr;
    z-index: 1;
  }
  div:nth-child(2) {
    top: -10px;
    left: -7px;
    width: 40px;
    height: 40px;
    background: none;
    border: 5px solid $icn-clr;
    border-radius: 50%;
  }
  div:nth-child(3) {
    top: 16px;
    left: -2px;
    transform: rotate(-225deg);
    width: 48px;
    background: $icn-clr;
  }
}

#menu31:checked+label {
  div:first-child {
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: none;
    border-top: 5px solid $icn-clr;
    border-right: 5px solid $icn-clr;
    left: 7px;
    top: -2px;
  }
  div:nth-child(2) {
    top: -10px;
    left: -7px;
    width: 40px;
    height: 40px;
    background: none;
    border: 5px solid $icn-clr;
    border-radius: 50%;
  }
  div:nth-child(3) {
    width: 7px;
    height: 3px;
    left: 16px;
    top: 18px;
    border-radius: 10px 0px 0px 0px;
    border-top: 8px solid $icn-clr;
    border-bottom: 4px solid $icn-clr;
    background: none;
  }
}

#menu32:checked + label {
  div:first-child {
    width: 50px;
    height: 0px;
    position: absolute;
    border-bottom: 17px solid darken($icn-clr, 25%);
    border-top: 30px solid transparent;
    border-radius: 40%;
    background: none;
    top: -7px;
  }
  div:nth-child(2) {
    height: 34px;
    width: 5px;
    background: darken($icn-clr, 25%);
    position: absolute;
    top: -5px;
    left: 15px;
  }
  div:nth-child(2):before {
    content: "";
    position: absolute;
    background: transparent;
    border-radius: 0 50% 0 0;
    width: 0px;
    height: 0px;
    border-right: 16px solid darken($icn-clr, 25%);
    border-top: 26px solid transparent;
    border-bottom: 0px solid transparent;
    top: -0px;
    left: -17px;
  }
  div:nth-child(2):after {
    content: "";
    position: absolute;
    width: 0px;
    height: 0px;
    background: transparent;
    border-radius: 0 50% 0 0;
    border-left: 30px solid darken($icn-clr, 25%);
    border-top: 26px solid transparent;
    border-bottom: 0px solid transparent;
    top: 0px;
    left: 6px;

  }
  div:nth-child(3) {
    position: absolute;
    width: 15px;
    height: 15px;
    border-top: 5px solid darken($icn-clr, 25%);
    border-right: 5px solid darken($icn-clr, 25%);
    background: none;
    top: 0px;
    left: 50px;
    transform: rotate(45deg);
  }
}

#menu33 + label {
  div {
    transition: top .15s .3s, transform .15s .12s;
  }
  div:nth-child(3) {
    transition: top .15s .3s, transform .3s;
  }
}

#menu33:checked + label {
  div {
    top: 10px;
    transform: rotate(45deg);
    transition: top .15s, transform .12s .15s;
  }
  div:nth-child(3) {
    transform: rotate(135deg);
    transition: top .15s, transform .3s .15s;
  }
}

#menu34 + label {
  div {
    transition: all .3s;
  }
  div:nth-child(3) {
    right: 0;
  }
}

#menu34:checked + label {
  div:first-child {
    top: 2%;
    left: 7%;
    width: 50%;
    transform: rotate(45deg);
  }
  div:nth-child(2) {
    transform: rotate(-45deg);
  }
  div:nth-child(3) {
    width: 50%;
    right: 7%;
    top: 47%;
    transform: rotate(45deg);
  }
}

#menu35 + label {
  div:first-child {
    transition: width .15s .15s, top .15s, right .15s, transform .15s;
  }
  div:nth-child(2) {
    transition: transform .15s;
  }
  div:nth-child(3) {
    right: 0;
    transition: width .15s .15s, top .15s, right .15s, transform .15s;
  }
}

#menu35:checked + label {
  div:first-child {
    top: 2%;
    left: 7%;
    width: 50%;
    transform: rotate(45deg);
    transition: width .15s, top .15s .15s, left .15s .15s, transform .15s .15s;
  }
  div:nth-child(2) {
    transform: rotate(-45deg);
    transition: transform .15s .15s;
  }
  div:nth-child(3) {
    width: 50%;
    right: 7%;
    top: 47%;
    transform: rotate(45deg);
    transition: width .15s, top .15s .15s, right .15s .15s, transform .15s .15s;
  }
}

#menu36 + label {
  div:first-child {
    transition: top .15s .15s, transform .15s;
  }
  div:nth-child(2),
  div:nth-child(3) {
    transition: top .15s .15s, transform .15s;
  }
}

#menu36:checked + label {
  div:first-child {
    top: 10px;
    transform: rotate(45deg);
    transition: top .15s, transform .15s .15s;
  }
  div:nth-child(2), 
  div:nth-child(3) {
    top: 10px;
    transform: rotate(-45deg);
    transition: top .15s, transform .15s .15s;
  }
}

#menu37 + label {
  div {
    transition: top .15s .17s, transform .12s .033s;
  }
  div:nth-child(3) {
    transition: top .15s .17s, transform .17s;
  }
}

#menu37:checked + label {
  div {
    top: 10px;
    transform: rotate(135deg);
    transition: top .1s, transform .12s .1s;
  }
  div:nth-child(3) {
    transform: rotate(225deg);
    transition: top .1s, transform .17s .1s;
  }
}

View Compiled

//Just to flash the showcase, this is pure CSS
var inputs = document.getElementsByTagName("input");
var labels = document.getElementsByTagName("label");

// Label Menus to make them easier to search for
for (var x = 0; x < labels.length; x++){
  labels[x].innerHTML += "<b>Menu "+ (x + 1) + "</b>";
}

// Checks all checkboxs triggering all CSS transitions 
function check (status) {
  for (var x = 0; x < inputs.length; x++){
    inputs[x].checked = status;
  }
  if(status){
    setTimeout(function() { 
      check(false);
    }, 2000);
  }
  
}

// Triggers demonstration on button click
document.getElementById("bam").onclick = function () {
  check(true);
};

// Flashes menus on load
document.addEventListener("DOMContentLoaded", function(event) { 
  check(true);
});

This Pen is owned by Kurt Petrek on CodePen.

See more by @KPCodes on CodePen

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