input {border-radius: 5px;}
div {margin-left: 10%;margin-right: 10%;padding: 10px;border: black 2px solid;margin-bottom:20%;background-color:palegoldenrod;border-radius:15px}
.resultado {
    
    color: #C1C1C1;
    background-color: #b01c1d;
    font-family: Courier;
    font-size: 15px;
    border-width:thick;
    border-color: white;
    border-radius: 12px;
    font-weight:bold;
}

.ecuacions{
    color: #C1C1C1;
    background-color: #b01c1d;
    font-family: Courier;
    font-size: 15px;
    border-width:thick;
    border-color: white;
    font-weight:bold;
    text-align: center;
}