#canvas_billard{
    position:fixed;
    top:80px;
    left:80px;
    z-index:0;
    background-color:#4b545c;
}


#canvas_trajectoire{
    position:fixed;
    top:80px;
    left:80px;
    z-index:3;
}

#canvas_foyers{
    position:fixed;
    top:80px;
    left:80px;
    z-index:5;
}


#canvas_bille{
    position:fixed;
    top:80px;
    left:80px;
    z-index:8;
}

#info_pente{
    position:fixed;
    top:110px;
    left:110px;
    z-index:15;
    border-radius:10px;
    width:80px;
    height:80px;
    display: flex;
    background-color:white;
    background-image:url('choix_3sur5.png');
    background-size:contain;
    color: #594471;
    font-size: 1.5rem;
    justify-content: center; /* centre horizontalement */
    align-items: center;     /* centre verticalement */
}

#menu_pente{
    position:fixed;
    top:100px;
    left:100px;
    z-index:16;    
}

#choix_fraction{
    visibility:hidden;
    min-width:60px;
    min-height:60px;
    border-radius:10px;
    background-color:white;
    position:fixed;
    top:110px;
    left:110px;
    z-index:18;    
    color: #594471;
    /*font-size: 1.5rem;*/
    text-align:center;
    /*padding:10px;*/
    /*display: flex;*/
    justify-content: center; /* centre horizontalement */
    align-items: center;     /* centre verticalement */
}

input[type="number"] {
    font-size: 1.5rem;
    border: none;
    outline: none;
    width: 50px;
    text-align: center;
    color: #594471;
  }
  
#info_choix_manuel{  
    position: absolute;
    /*top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* pour centrer dans la page */
    top: 220px;
    left: 110px;
    padding: 8px;  
    width:400px ;
    z-index:15;
    border-radius:10px;
    background-color:white;
    visibility:hidden;        
    font-size: 1.2rem;
}

#info_choix_manuel p{  
    margin-bottom:0;
}

#menu_perturbation{
    top:480px;
}