formulario de contacto

header{
    background-color: rgb(174, 172, 248);
    padding: 20px 0;
}

.caja{
    width: 940px;
    position: relative;
    margin: 0 auto;
}
nav{
    position:absolute;
    top: 110px;
    right: 0px;
}
nav li{
    display: inline;
    margin: 0 10px 0 25px;
}
nav a{
    text-transform: uppercase;
    color:rgb(27, 4, 88);
    font-weight: bold;
    font-size: 22px;
    text-decoration: none;
}
nav a:hover{
    color: rgb(235, 112, 11);
    text-decoration: underline;

}   

.productos{
    width: 940px;
    margin: 0 auto;
    padding: 50px;
}
.productos li{
    display: inline-block;
    text-align:center;
    width: 30%;
    vertical-align: top ;
    margin: 0 1.5%;
    padding: 30px 20px;
    box-sizing: border-box;
    border: 5px rgb(80, 21, 107) solid;
    border-radius: 10px;

}   

.productos li:hover{
    border-color: rgb(15, 191, 204);
}
.productos li:active{
    border-color: rgb(6, 110, 14);
}

.productos h2{
    font-size: 30px;
    font-weight: bold;
}

.productos li:hover h2{
    font-size: 33px;
}


.producto-descripcion{
    font-size: 18px;
}

.producto-precio{
    font-size: 20px;
    font-weight: bold;
    margin-top: 10px;
}
footer{
    text-align: center;
    background: url(imagenes/bg.jpg);
    padding: 40px;
}
.Copyright{
    color:#FFFFFF;
    font-size: 10px;
    margin: 20px;
}

main{
    width: 940px;
    margin: 0 auto;
}
form{
    margin: 40px 0;
}

form label{
    display:block;
    font-size: 20px;
    margin: 0 0 10px;
}
form input{

    display: block;
    margin: 0 0 20px;
    padding:10px 25px;
    width: 50%;
}