Edit in JSFiddle

code {
    background-image: repeating-linear-gradient(whitesmoke 0em, whitesmoke 1.2em, white 1.2em, white 2.4em);
    border-radius: 2px;
    box-shadow: 0 0 2px black;
    line-height: 1.2em;
    margin: 12px;
    padding: 1.2em 0 1.2em 20px;
    position: absolute;
}