/* Enter Your Custom CSS Here */li.astm-search-menu #searchsubmit {
    background: url('https://www.rrtrainers.com/wp-content/uploads/magnifying-glass-white.png') no-repeat #000 center;
    background-size: 81%;
    font-size: 0;
    padding: 9px 12px;
    float: right;
    margin-top: 3px;