body {
    padding: 40px 0;
    background-color: #eee;
}

.form-signin {
    max-width: 330px;
    padding: 15px;
    margin: 0 auto;
}

.form-signin .form-signin-heading,
.form-signin .checkbox {
    margin-bottom: 10px;
}

.form-signin .checkbox {
    font-weight: 400; /* Normal weight in numeric value */
}

.form-signin .form-control {
    position: relative;
    box-sizing: border-box; /* Standard property, vendor prefixes unnecessary in modern browsers */
    padding: 10px;
    font-size: 1rem; /* Relative unit for scalability */
}

.form-signin .form-control:focus {
    z-index: 2;
}

.form-signin input[type="email"] {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.form-signin input[type="password"] {
    margin-bottom: 10px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}