body {
    margin: 0;
}

#editor {
    width: 50%;
    height: 100%;
}

.split {
    height: 100%;
    width: 50%;
    position: fixed;
    z-index: 1;
    top: 0;
    overflow-x: hidden;
    padding-top: 20px;
}

/* Control the left side */
.left {
    left: 0;
}

/* Control the right side */
.right {
    right: 0;
}