body { overflow: hidden; } .noscriptmsg { position: fixed; background-color: #fff; width: 100vw; height: 100vh; font-size: 30px; z-index: 10000; user-select: none; display: flex; text-align: center; align-items: center; justify-content: center; padding-left: 15px; padding-right: 15px; } .noscriptmsg p { max-width: 960px; line-height: 1.4; } @media (max-width: 768px) { .noscriptmsg { font-size: 18px; } }