<div class="line">
  <button class="c-hamburger c-hamburger--rot">
  <span>toggle menu</span>
</button>

<button class="c-hamburger c-hamburger--htx">
  <span>toggle menu</span>
</button>

<button class="c-hamburger c-hamburger--htla">
  <span>toggle menu</span>
</button>

<button class="c-hamburger c-hamburger--htra">
  <span>toggle menu</span>
</button>

<button class="c-hamburger c-hamburger--htta">
  <span>toggle menu</span>
</button>
  
 <button class="c-hamburger c-hamburger--htba">
  <span>toggle menu</span>
</button>
</div>
  <div class="author"><p><a href="http://callmenick.com/post/animating-css-only-hamburger-menu-icons"> &copy original material, where I forked and upgraded to this state</a>
</div>

html, body {
  background: #333;
  display: flex;
  flex-direction: column;
    justify-content: center;
    align-self: center;
    align-content: center;
}

.line {
  position: relative;
  clear: both;
  width: 100%;
  height: 150px;
  display: inline-flex;
    justify-content: center;
    align-self: center;
    align-content: center;
}
.author {
  position: relative;
 width: 100%;
  height: 20px;
    display: flex;
    justify-content: center;
    align-self: center;
    align-content: center;
}

.author a {
  color: #fff;
}

.c-hamburger {
  display: block;
  position: relative;
  overflow: hidden;
  margin: 0;
  padding: 0;
  width: 96px;
  height: 96px;
  font-size: 0;
  text-indent: -9999px;
  appearance: none;
  box-shadow: none;
  border-radius: none;
  border: none;
  cursor: pointer;
  transition: background 0.3s;
}

.c-hamburger:focus {
  outline: none;
}

.c-hamburger span {
  display: block;
  position: absolute;
  top: 44px;
  left: 18px;
  right: 18px;
  height: 8px;
  background: white;
}

.c-hamburger span::before,
.c-hamburger span::after {
  position: absolute;
  display: block;
  left: 0;
  width: 100%;
  height: 8px;
  background-color: #fff;
  content: "";
}

.c-hamburger span::before {
  top: -20px;
}

.c-hamburger span::after {
  bottom: -20px;
}

/*haburger rotation*/

.c-hamburger--rot {
  background-color: #28aadc;
}

.c-hamburger--rot span {
  transition: transform 0.3s;
}

/* active state, i.e. menu open */
.c-hamburger--rot.is-active {
  background-color: #166888;
}

.c-hamburger--rot.is-active span {
  transform: rotate(90deg);
}

/*hamburger to x*/

.c-hamburger--htx {
  background-color: #ff3264;
}

.c-hamburger--htx span {
  
  transition: background 0s 0.3s;
}

.c-hamburger--htx span::before,
.c-hamburger--htx span::after {
  transition-duration: 0.3s, 0.3s;
  transition-delay: 0.3s, 0s;
}

.c-hamburger--htx span::before {
  transition-property: top, transform;
}

.c-hamburger--htx span::after {
  transition-property: bottom, transform;
}

/* active state, i.e. menu open */
.c-hamburger--htx.is-active {
  background-color: #cb0032;
}

.c-hamburger--htx.is-active span {
  background: none;
}

.c-hamburger--htx.is-active span::before {
  top: 0;
  transform: rotate(45deg);
}

.c-hamburger--htx.is-active span::after {
  bottom: 0;
  transform: rotate(-45deg);
}

.c-hamburger--htx.is-active span::before,
.c-hamburger--htx.is-active span::after {
  transition-delay: 0s, 0.3s;
}

/*hamburger to left arrow*/

.c-hamburger--htla {
  background-color: #32dc64;
}

.c-hamburger--htla span {
  transition: transform 0.3s;
}

.c-hamburger--htla span::before {
  transform-origin: top right;
  transition: transform 0.3s, width 0.3s, top 0.3s;
}

.c-hamburger--htla span::after {
  transform-origin: bottom right;
  transition: transform 0.3s, width 0.3s, bottom 0.3s;
}

/* active state, i.e. menu open */
.c-hamburger--htla.is-active {
  background-color: #18903c;
}

.c-hamburger--htla.is-active span {
  transform: rotate(-180deg);
}

.c-hamburger--htla.is-active span::before,
.c-hamburger--htla.is-active span::after {
  width: 50%;
}

.c-hamburger--htla.is-active span::before {
  top: 0;
  transform: translateX(38px) translateY(4px) rotate(45deg);
}

.c-hamburger--htla.is-active span::after {
  bottom: 0;
  transform: translateX(38px) translateY(-4px) rotate(-45deg);
}

/*hamburger to right arrow*/

.c-hamburger--htra {
  background-color: #ff9650;
}

.c-hamburger--htra span {
  transition: transform 0.3s;
}

.c-hamburger--htra span::before {
  transform-origin: top left;
  transition: transform 0.3s, width 0.3s, top 0.3s;
}

.c-hamburger--htra span::after {
  transform-origin: bottom left;
  transition: transform 0.3s, width 0.3s, bottom 0.3s;
}

/* active state, i.e. menu open */
.c-hamburger--htra.is-active {
  background-color: #e95d00;
}

.c-hamburger--htra.is-active span {
  transform: rotate(180deg);
}

.c-hamburger--htra.is-active span::before,
.c-hamburger--htra.is-active span::after {
  width: 50%;
}

.c-hamburger--htra.is-active span::before {
  top: 0;
  transform: translateX(-8px) translateY(4px) rotate(-45deg);
}

.c-hamburger--htra.is-active span::after {
  bottom: 0;
  transform: translateX(-8px) translateY(-4px) rotate(45deg);
}

/*hamburger to top arrow*/

.c-hamburger--htta {
  background-color: #50ff90;
}

.c-hamburger--htta span {
  transition: transform 0.3s;
}

.c-hamburger--htta span::before {
  transform-origin: top left;
  transition: transform 0.3s, width 0.3s, top 0.3s;
}

.c-hamburger--htta span::after {
  transform-origin: bottom left;
  transition: transform 0.3s, width 0.3s, bottom 0.3s;
}

/* active state, i.e. menu open */
.c-hamburger--htta.is-active {
  background-color: #ff9090;
}

.c-hamburger--htta.is-active span {
  transform: rotate(90deg);
}

.c-hamburger--htta.is-active span::before,
.c-hamburger--htta.is-active span::after {
  width: 50%;
}

.c-hamburger--htta.is-active span::before {
  top: 0;
  transform: translateX(-8px) translateY(4px) rotate(-45deg);
}

.c-hamburger--htta.is-active span::after {
  bottom: 0;
  transform: translateX(-8px) translateY(-4px) rotate(45deg);
}

/* hamburger to bottom arrow */


.c-hamburger--htba {
  background-color: #4030ff;
}

.c-hamburger--htba span {
  transition: transform 0.3s;
}

.c-hamburger--htba span::before {
  transform-origin: top left;
  transition: transform 0.3s, width 0.3s, top 0.3s;
}

.c-hamburger--htba span::after {
  transform-origin: bottom left;
  transition: transform 0.3s, width 0.3s, bottom 0.3s;
}

/* active state, i.e. menu open */
.c-hamburger--htba.is-active {
  background-color: #9030ff;
}

.c-hamburger--htba.is-active span {
  transform: rotate(-90deg);
}

.c-hamburger--htba.is-active span::before,
.c-hamburger--htba.is-active span::after {
  width: 50%;
}

.c-hamburger--htba.is-active span::before {
  top: 0;
  transform: translateX(-8px) translateY(4px) rotate(-45deg);
}

.c-hamburger--htba.is-active span::after {
  bottom: 0;
  transform: translateX(-8px) translateY(-4px) rotate(45deg);
}

(function() {

  "use strict";

  var toggles = document.querySelectorAll(".c-hamburger");

  for (var i = toggles.length - 1; i >= 0; i--) {
    var toggle = toggles[i];
    toggleHandler(toggle);
  };

  function toggleHandler(toggle) {
    toggle.addEventListener( "click", function(e) {
      e.preventDefault();
      (this.classList.contains("is-active") === true) ? this.classList.remove("is-active") : this.classList.add("is-active");
    });
  }

})();