body{
    background: #313131;
}
#container{
    width:400px;
    margin:0 auto;
    margin-top:10%;
}
/* Bordered form */
form {
    width:100%;
    padding: 30px;
    border: 1px solid #f1f1f1;
    background: #fff;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
}
#container h1{
    width: 38%;
    margin: 0 auto;
    padding-bottom: 10px;
}

/* Full-width inputs */
input[type=text], input[type=password] {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

/* Set a style for all buttons */
input[type=submit] {
    background-color: #2e2e2e;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    cursor: pointer;
    width: 100%;
}
input[type=submit]:hover {
    background-color: white;
    color: #53af57;
    border: 1px solid #53af57;
}

.btn {
    display: inline-block;
    font-weight: 400;
    color: #212529;
    text-align: center;
    vertical-align: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 0.25rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}
.btn-success {
    color: #fff;
    background-color: #28a745;
    border-color: #28a745;
}

.btn-success:hover {
    color: #fff;
    background-color: #218838;
    border-color: #1e7e34;
}

.btn-success:focus, .btn-success.focus {
    color: #fff;
    background-color: #218838;
    border-color: #1e7e34;
    box-shadow: 0 0 0 0.2rem rgba(72, 180, 97, 0.5);
}

.btn-success.disabled, .btn-success:disabled {
    color: #fff;
    background-color: #28a745;
    border-color: #28a745;
}

.btn-success:not(:disabled):not(.disabled):active, .btn-success:not(:disabled):not(.disabled).active,
.show > .btn-success.dropdown-toggle {
    color: #fff;
    background-color: #1e7e34;
    border-color: #1c7430;
}

.btn-success:not(:disabled):not(.disabled):active:focus, .btn-success:not(:disabled):not(.disabled).active:focus,
.show > .btn-success.dropdown-toggle:focus {
    box-shadow: 0 0 0 0.2rem rgba(72, 180, 97, 0.5);
}