form {
width: 500px;
margin: 100px auto 0;
text-align: center;
}
.login, .login div {
padding: 0.5rem;
}
.login {
display: table;
width: 100%;
text-align: left;
}
.login div {
display: table-row;
width: 100%;
}
.login div > * {
display: table-cell;
}
div label {
width: 7rem;
margin: -0.5rem;
padding: 0.5rem;
}
label + input {
width: 100%;
}
iframe {
width: 0;
height: 0;
border: none;
}