.outdated-spec { color: black; background-color: rgba(0,0,0,0.5); } .outdated-warning { position: fixed; bottom: 50%; left: 0; right: 0; margin: 0 auto; width: 50%; background: maroon; color: white; border-radius: 1em; box-shadow: 0 0 1em red; padding: 2em; text-align: center; z-index: 2; } .outdated-warning a { color: currentcolor; background: transparent; } .outdated-warning button { position: absolute; top: 0; right:0; margin: 0; border: 0; padding: 0.25em 0.5em; background: transparent; color: white; font:1em sans-serif; text-align:center; } .outdated-warning span { display: block; } .outdated-collapsed { bottom: 0; border-radius: 0; width: 100%; padding: 0; }