#menu-btn {
  position: relative;
}

.burger-line {
  position: absolute;
  left: 50%;
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: 0.3s ease;
  transform: translateX(-50%);
}


.burger-line:nth-child(1) { top: 10px; }
.burger-line:nth-child(2) { top: 50%; transform: translate(-50%, -50%); }
.burger-line:nth-child(3) { bottom: 10px; }


#menu-btn.open .burger-line:nth-child(1) {
  top: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
}

#menu-btn.open .burger-line:nth-child(2) {
  opacity: 0;
}

#menu-btn.open .burger-line:nth-child(3) {
  top: 50%;
  transform: translate(-50%, -50%) rotate(-45deg);
}

   #carousel {
        transform: translate3d(0,0,0);
    }

    #carousel img {
        min-width: 100%;
    }