.ol-control button {
    display: block !important;
    margin: 2px !important;
    padding: 0 !important;
    color: #575757 !important;
    font-size: 1em !important;
    font-weight: 900 !important;
    text-decoration: none !important;
    text-align: center !important;
    height: 2em !important;
    width: 2em !important;
    line-height: 1em !important;
    background-color: #fff !important;
    border: 1px solid #575757 !important;
    border-radius: 1px !important;
}