button.rt_button_class {
    font-size: 13px;
    height: 28px;
    margin: 0;
    padding: 0 10px 1px;
    cursor: pointer;
    border-width: 1px;
    border-style: solid;
    -webkit-appearance: none;
    border-radius: 3px;
    white-space: nowrap;
    box-sizing: border-box;
    outline: none;
    box-shadow: none;
    margin-bottom: 17px;
}