#calculator{
    width:580px;
}

#calculator .system_cell{
    width: 33%;
    text-align:center;
    vertical-align:middle;
}

#calculator .system_item{
    border: 6px transparent solid;
}

#calculator .system_item:hover{
    border: 6px #d3d1a3 solid;
}

#calculator .system_item.selected{
    border: 6px #d3d1a3 solid;
}

#calculator .door_cell{
    width:50%;
    text-align:left;
}

#calculator .error{
    font-size:10px;
    font-weight:bold;
    font-style:italic;
    color:red;
}

#calculator .minmax{
    font-size:10px;
    font-weight:bold;
    font-style:italic;
    color:black;
}

#calculator_price_container{
    font-size: 19px;
}

#calculator_price{
    font-weight:bold;
}