ORG

:root{color-scheme:light;--mainbg:white;--maincl:black}body{padding:10px;background:var(--mainbg);color:var(--maincl);width:100%}h1{width:100%;height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:10px}@media (prefers-color-scheme:dark){:root{color-scheme:dark;--mainbg:black;--maincl:white}}Sorry, You need Javascript to run this program.