.c-hamburger__line {
  height: 2px;
}

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

.c-header.js-active .c-hamburger .c-hamburger__line:first-child {
  transform: rotate(-45deg);
  top: 6px;
}

.c-header.js-active .c-hamburger .c-hamburger__line:last-child {
  transform: rotate(45deg);
  top: -8px;
}

.c-header.js-active .c-hamburger .c-hamburger__line:nth-child(2){
  opacity: 0;
}