.hamburger {
  font: inherit;
  display: inline-block;
  overflow: visible;
  margin: 0;
  padding: 10px 0 0 0;
  cursor: pointer;
  transition-timing-function: linear;
  transition-duration: .15s;
  transition-property: opacity, filter;
  text-transform: none;
  color: #333;
  border: 0;
  background-color: transparent
}

.hamburger.is-active:hover,
.hamburger:hover {
  opacity: .7
}

.hamburger.is-active .hamburger-inner,
.hamburger.is-active .hamburger-inner:after,
.hamburger.is-active .hamburger-inner:before {
  background-color: #333
}

.hamburger-box {
  position: relative;
  display: inline-block;
  width: 28px;
  height: 32px
}

.hamburger-inner {
  top: 50%;
  display: block;
  margin-top: -2px
}

.hamburger-inner,
.hamburger-inner:after,
.hamburger-inner:before {
  position: absolute;
  width: 27.5px;
  height: 2px;
  transition-timing-function: ease;
  transition-duration: .15s;
  transition-property: transform;
  border-radius: 4px;
  background-color: #333
}

.hamburger-inner:after,
.hamburger-inner:before {
  display: block;
  content: ""
}

.hamburger-inner:before {
  top: -10px
}

.hamburger-inner:after {
  bottom: -10px
}

/* Elastic */
.hamburger--elastic .hamburger-inner {
  top: 2px;
  transition-timing-function: cubic-bezier(.68, -.55, .265, 1.55);
  transition-duration: .275s
}

.hamburger--elastic .hamburger-inner:before {
  top: 10px;
  transition: opacity .125s ease .275s
}

.hamburger--elastic .hamburger-inner:after {
  top: 20px;
  transition: transform .275s cubic-bezier(.68, -.55, .265, 1.55)
}

.hamburger--elastic.is-active .hamburger-inner {
  transition-delay: 75ms;
  transform: translate3d(0, 10px, 0) rotate(135deg)
}

.hamburger--elastic.is-active .hamburger-inner:before {
  transition-delay: 0s;
  opacity: 0
}

.hamburger--elastic.is-active .hamburger-inner:after {
  transition-delay: 75ms;
  transform: translate3d(0, -20px, 0) rotate(-270deg)
}

.hamburger--elastic-r .hamburger-inner {
  top: 2px;
  transition-timing-function: cubic-bezier(.68, -.55, .265, 1.55);
  transition-duration: .275s
}

.hamburger--elastic-r .hamburger-inner:before {
  top: 10px;
  transition: opacity .125s ease .275s
}

.hamburger--elastic-r .hamburger-inner:after {
  top: 20px;
  transition: transform .275s cubic-bezier(.68, -.55, .265, 1.55)
}

.hamburger--elastic-r.is-active .hamburger-inner {
  transition-delay: 75ms;
  transform: translate3d(0, 10px, 0) rotate(-135deg)
}

.hamburger--elastic-r.is-active .hamburger-inner:before {
  transition-delay: 0s;
  opacity: 0
}

.hamburger--elastic-r.is-active .hamburger-inner:after {
  transition-delay: 75ms;
  transform: translate3d(0, -20px, 0) rotate(270deg)
}