.topdf{
    display:block;width:200px;height:auto; padding:10px; text-align:center;font-size: 14px; background-color:white; transition: 0.3s;color: #b92f2f;border-radius: 5px;cursor:pointer;user-select: none;border: 3px solid #b92f2f;
    }
    .topdf:hover{
    background-color:#b92f2f;
    color: white;
    }