pre{
    position: relative;
}
pre:before{
    display: block;
    content: "";
    height: 32px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    margin-bottom: 20px;
    background-color: #141313!important;
    padding: 0 10px;
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
}

pre>code{
    overflow-y: hidden;
    overflow-x: scroll;
}