body {
    font-family: Arial;
    margin: 0
}

.wrap {
    display: flex
}

.sidebar {
    width: 220px;
    padding: 16px;
    background: #fff;
    border-right: 1px solid #eee
}

.main {
    padding: 20px
}

.card {
    max-width: 420px;
    margin: 40px auto;
    padding: 18px;
    background: #fff;
    border-radius: 6px
}

input,
button {
    padding: 8px;
    margin: 6px 0;
    width: 100%
}

.alert {
    background: #ffafaf;
    padding: 8px
}