body {
    background-color: gray;
    font-family: sans-serif;
}
#login {
    margin: 0 auto;
    max-width: 25rem;
    color: white;
}
#logo {
    display: block;
    max-width: 90%;
    margin: 0 0 0 5%;
    height: 2rem;
}
#login form {
    max-width: 85%;
    display: block;
    margin: 0 auto;
}
#maximumGo {
    width: calc(100% - 1rem);
}
#copyright {
    font-size: .75rem;
    text-align: center;
}

input {
    box-sizing: border-box;
    border-radius: .5em;
    border: .25em solid black;
    color: white;
    padding: .25em;
    margin: .25em;
}
.input-group {
    display: table;
    width: 100%;
}
.input-group > input, .input-group > label {
    display: table-cell;
}
.input-group > input {
    width: calc(100% - 1rem);
    background-color: #333;
}
input[type="submit"] {
    box-shadow: 0 0 .5em black;
    background-color: #333;
    color: white;
}
