img {
  width: 100%;
  vertical-align: middle;
}

.image-spliter,
img,
.mover {
    border-radius: 10px;
  overflow: hidden;
  -webkit-touch-callout: none;
    -webkit-user-select: none;
     -khtml-user-select: none;
       -moz-user-select: none;
        -ms-user-select: none;
            user-select: none;
}

.image-spliter {
  position: relative;
}

.img-left {
  position: absolute;
  top: 0;
  left:0;
}

.mover {
    position: absolute;
    width: 200px;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 10;
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 16px;
    line-height: 30px;
}

    .image-spliter:hover .mover {
        font-size: 32px;
        line-height: 60px;
    }

.mover:before,
.mover:after {
  position:absolute;
  left:50%;
  content: "";
  background: #fff;
  cursor: -webkit-grab;
  cursor: grab;
}

.mover:before {
  top: 0;
  transform:translateX(-50%);
  width: 1px;
  height: 100%;
}
.mover:after {
    transition: 0.3s;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    content: "\f337";
    border-radius: 50%;
    text-align: center;
    opacity: 0;
    
}

.image-spliter:hover .mover:after {
    width: 60px;
    height: 60px;
    opacity: 1;
}