*{
    margin: 0;
    padding: 0;
    border: 0;
}

.btn-wsp{
    position: fixed;
    width: 55px;
    height: 55px;
    line-height: 55px;
    bottom: 30px;
    right: 30px;
    
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
   
    z-index: 100;
}

.btn-wsp:hover{
   text-decoration: none;
   
}