.white{
    background: #fff;
    padding: 2em;
    margin: 1em 0 2em 0;
}
.img-oniad{
    display: block;
    width: 100%;
    max-width: 700px;
}
.button-show-code{
    display: inline-block;
    color: #fff;
    background-color: #36c6d3;
    border-color: #2bb8c4;
    margin: 0 1em;
    font-weight: 400;
    text-align: center;
    vertical-align: middle;
    touch-action: manipulation;
    white-space: nowrap;
    padding: 6px 12px;
    font-size: 14px;
    line-height: 1.42857;

}