.leftSide, .rightSide, .splitter {
            position: absolute;
            height: 100%;
            overflow: hidden;
        }

        .splitter {
            width: 10px;
            z-index: 100;
            cursor: col-resize;
        }

        .leftSide > div, .rightSide > div {
            height: 100%;
            width: 100%;
            position: relative;
        }



        /* Specific to demo */
        .div-1-content, .div-2-content {
            margin: auto;
            text-align: center;
            top: 50%;
            transform: translateY(-50%);
            position: absolute;
            width: 100%;
        }