body {
      font-size:14px; margin:0;
}
.contenedor {
     margin:0 auto;
     width:800px; 
     text-align:center;
}
span {
     color:red;
}
#formulario {
     margin:0 auto;
     border-radius:5px;
     box-shadow:2px 3px 4px #000;
     border:1px solid #000;
     width:400px;
     padding:25px;
     background:#d1d1d1;
}
#formulariodocente {
     margin:0 auto;
     border-radius:5px;
     box-shadow:2px 3px 4px #000;
     border:1px solid #000;
     width:600px;
     padding:25px;
     background:#d1d1d1;
}
input {
     border-radius:5px;
     padding:8px;
}
input[type=submit] {
     border-radius:5px;
     padding:8px;
     background:#000;
     color:#fff;
     cursor:pointer;
}
#logout {
float:right;
font-color:red;
padding:20px;
border:dashed 0px gray
}
h2 {
font-size:25px;
}
button {
     border-radius:5px;
     padding:8px;
     background:#000;
     color:#fff;
     cursor:pointer;
}