.hide_display {
    display: none;
}
#ps-green {
    background-color: none;
    background-image: url(../images/button_green.png);
    background-repeat: none;
    border: 0;
    color: #FFFFFF;
    cursor: pointer;
    height: 30px;
    outline: 0;
    width: 100px;
}

#ps-red {
    background-color: none;
    background-image: url(../images/button_red.png);
    background-repeat: none;
    border: 0;
    color: #FFFFFF;
    cursor: pointer;
    height: 30px;
    outline: 0;
    width: 100px;
}