* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    padding: 20px;
}

h1,
h2 {
    text-align: center;
    margin-bottom: 20px;
}

.status {
    width: 1000px;
    margin: 20px auto;
    text-align: center;
    background: #f2f2f2;
    padding: 20px;
}

.status.logined {
    background: #2c81b9;
    color: #fff;
}

.row {
    display: flex;
    background-color: #f2f2f2;
    padding: 20px;
    margin: 20px auto 0 auto;
    width: 1000px;
}

.row>* {
    flex: 1;
    margin-right: 20px;
    padding: 20px;
    background: #d9d9d9;
}

.row>*:last-child {
    margin-right: 0;
}

label {
    display: inline-block;
    width: 40%;
    line-height: 1.5rem;
}

input {
    display: inline-block;
    width: 60%;
    padding: 10px;
    font-size: 1rem;
}

p {
    margin-bottom: 10px;
}

button {
    font-size: 20px;
    padding: 10px 20px;
    cursor: pointer;
    display: block;
    margin: 10px auto;
}

.action>div {
    text-align: center;
}

.action .hint {
    font-size: 14px;
    color: #999;
}

.action h3 {
    margin-bottom: 10px;
}

pre {
    background: #333;
    border-radius: 5px;
    padding: 10px;
    color: #fff;
    min-height: 80px;
    text-align: left;
    white-space: pre-wrap;
}

.return {
    display: none;
}