/*go_top*/
#gotop {
    display: none;
    position: fixed;
    right: 20px;
    bottom: 20px;
    padding: 10px 15px;
    font-size: 17px;
    border-radius: 50px;width:60px;height:60px;
    background-color: rgba(162, 17, 17, 0.5);
    color: white;
    text-align:center;
    cursor: pointer;
}

/*logo*/
#logo a {
    color: rgb(51, 102, 153);
    font-family: "微軟正黑體",Arial,Helvetica,sans-serif;
    font-size: 42px;
    font-weight: bold;
    position: relative;
    right: 500px;
}


/*form*/
.mark{
  background:none;
}