body {
    position: relative;
    z-index: 1;
}
.off, .offOverlay {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}
.off  {
    z-index: 3;
}
.offOverlay {
    z-index: 2;
    background-color: rgb(128, 128, 128);
    background-color: rgba(0, 0, 0, 0.65);
}
.off__body {
    box-sizing: border-box;
    padding: 40px;
    font-size: 24px;
    font-family: Arial, sans-serif;
    text-align: center;
    overflow: auto;
    max-height: 100vh;
    max-width: 500px;
    margin: 0 auto;
}
.off__body h1 {
    font-size: 48px;
    font-family: Arial, sans-serif;
    font-weight: bold;
    padding-bottom: 40px;
    padding-top: 40px;
    margin-left: -35px;
    margin-right: -35px;
}
.off__body h1 span {
    font-size: 28px;
}
.off__body p {
    padding-bottom: 20px;
    padding-top: 20px;
}