.noScriptMessage{ position: fixed; width: 100%; height: 100%; background: #f3f3f2; text-align: center; z-index: 9999; padding: 20px; text-transform: uppercase; font-size: 12px; opacity: .9; } .noScriptMessage .noScriptMessage-block { border: 1px solid #bbb; width: 350px; margin: 54px auto 0 auto; background: white; border-radius: 2px; padding: 38px; } @media (max-width: 600px) { .noScriptMessage .noScriptMessage-block { width: 100%; } }