#scon_stt {

    position: fixed;

    background-color: rgb(204, 194, 192);
    border-radius: 100%;
    
    padding: 20px;
    line-height: 0;
    
    width: 50px;
    height: 50px;
    
    filter: drop-shadow(1px 1px 1px #333);
    
    bottom: 20px;
    right: 20px;
    
    text-align: center;
    display: inline-table;
    
    cursor: pointer;
    
    z-index: 1000;
}

#scon_stt > span {
    
    display: table-cell;
    
    vertical-align: middle;
}

#scon_stt > span > svg {
    stroke: #333;
}