.hamburger {
  padding: 15px 15px;
  display: inline-block;
  cursor: pointer;
  transition-property: opacity, -webkit-filter;
  transition-property: opacity, filter;
  transition-property: opacity, filter, -webkit-filter;
  transition-duration: 0.15s;
  transition-timing-function: linear;
  font: inherit;
  color: inherit;
  text-transform: none;
  background-color: transparent;
  overflow: visible;
}
.hamburger:hover {
  opacity: 0.7;
}
.hamburger-box {
  width: 30px;
  height: 24px;
  display: inline-block;
  position: relative;
}

.hamburger-inner {
  display: block;
  top: 50%;
  margin-top: -2px;
}
.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
  width: 30px;
  height: 4px;
  background-color: #B81900;
  border-radius: 4px;
  position: absolute;
  transition-property: -webkit-transform;
  transition-property: transform;
  transition-property: transform, -webkit-transform;
  transition-duration: 0.15s;
  transition-timing-function: ease;
}
.hamburger-inner::before, .hamburger-inner::after {
  content: "";
  display: block;
}
.hamburger-inner::before {
  top: -10px;
}
.hamburger-inner::after {
  bottom: -10px;
}

/*
 * Slider
 */
.hamburger--slider .hamburger-inner {
  top: 2px;
}
.hamburger--slider .hamburger-inner::before {
  top: 10px;
  transition-property: opacity, -webkit-transform;
  transition-property: transform, opacity;
  transition-property: transform, opacity, -webkit-transform;
  transition-timing-function: ease;
  transition-duration: 0.2s;
}
.hamburger--slider .hamburger-inner::after {
  top: 20px;
}

.hamburger--slider.is-active .hamburger-inner {
  -webkit-transform: translate3d(0, 10px, 0) rotate(45deg);
          transform: translate3d(0, 10px, 0) rotate(45deg);
}
.hamburger--slider.is-active .hamburger-inner::before {
  -webkit-transform: rotate(-45deg) translate3d(-5.71429px, -6px, 0);
          transform: rotate(-45deg) translate3d(-5.71429px, -6px, 0);
  opacity: 0;
}
.hamburger--slider.is-active .hamburger-inner::after {
  -webkit-transform: translate3d(0, -20px, 0) rotate(-90deg);
          transform: translate3d(0, -20px, 0) rotate(-90deg);
}