/* !Burger (Author: mail@jandousek.cz) */

.burger {
  width: 40px;
  height: 40px;
  position: relative;
  display: inline-block;
  background-color: #333;
  border-radius: 50%;
  font-size: 0;
}

/*
  lines
  ***
 */

.burger-lines, .burger-lines:before, .burger-lines:after {
  width: 20px;
  height: 1px;
  position: absolute;
  background-color: #fff;
  -webkit-transition: 150ms;
  -o-transition: 150ms;
  transition: 150ms;
}
.burger-lines {
  left: 50%;
  top: 50%;
  margin: -1px 0 0 -10px;
}
.burger-lines:before, .burger-lines:after {
  content: '';
  left: 0;
}
.burger-lines:before {
  top: -6px;
}
.burger-lines:after {
  bottom: -6px;
}

/* actions */

.burger.--active .burger-lines {
  background-color: transparent !important;
}
.burger.--active .burger-lines:before {
  top: 0;
  -webkit-transform: rotate(45deg);
      -ms-transform: rotate(45deg);
          transform: rotate(45deg);
}
.burger.--active .burger-lines:after {
  bottom: 0;
  -webkit-transform: rotate(-45deg);
      -ms-transform: rotate(-45deg);
          transform: rotate(-45deg);
}