.back-to-top {
    background: var(--darkpeach);
    position: fixed;
    bottom:50px;
    right:50px;
    padding:1em;
    border-radius: 50%;
    border: 2px solid #000;
    color: #000;
    font-weight: bold;
    font-family: Arial, Helvetica, sans-serif;
    
   }

   @media screen and (max-width: 580px){
    .back-to-top{
        width: 30px;
        height: 30px;
        right:30px;
        bottom:60px;
        padding: 5px;
        text-align: center;
    } 
}