CODE EXAMPLE FOR CSS

position absolute prevent overflow

.abs-position {
    position:absolute;
    right:0;
    left: 300px;
    overflow: hidden;
    /* following: just for demonstration purposes */
    padding: 5px;
    border: 1px solid gold;
    opacity: 0.8;
}
.abs-content {
    width: 400px;
    /* following: just for demonstration purposes */
    padding: 5px;
    background: lightgray;
}
.container {
    width: 600px;
    background: cornflowerblue;
}