* { user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    -webkit-tap-highlight-color: transparent;
    margin:0;
    padding:0;
}

#calculadora div.row{
    padding:2px;
}
.boton-blanco{
    border:0;
}

#instrucciones {
    font-family: 'Libre Baskerville', serif;
    background-color:white;
    margin-left: 20px;
}
#instrucciones ul{
    margin-left: 40px;
}


#cuentas{
    color: grey;
}
#resultado{
    font-size: x-large;
    color: black;
    cursor: pointer;
    z-index: 99;
}
#memoria{
    height: 60px; 
    font-size: x-large;
    color: black;
    cursor: pointer;
}
.box-droppable{
    z-index: 0;
    background-color: lightgrey;
    width: 100%;
    height: 100%;
}

@media (orientation:landscape){ #sortable {width:100vh;}}
@media (orientation:portrait) { #sortable {width:100%;}}