html,
body {
    font-family: verdana;
    height: 100%;
    margin: 0;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
}

.wrap {
    padding: 20px 40px;
    border: 1px solid #ccc;
    background-color: #eee;
}

.textblock {
    text-align: center;
}