.sa-formulario {

max-width:900px;
margin:auto;
background:#fff;
padding:25px;
border-radius:10px;
box-shadow:0 0 10px rgba(0,0,0,0.1);

}

.sa-formulario label {

display:block;
margin-top:10px;
font-weight:bold;

}

.sa-formulario input {

width:100%;
padding:8px;
margin-top:5px;

}