body{background:url(https://cdn.pixabay.com/photo/2015/05/29/16/36/seamless-tiling-clouds-789453_1280.jpg), #f0f url(https://cdn.pixabay.com/photo/2021/05/25/15/05/blue-6282727_1280.jpg); color:#fff; font-family:Courier, monospace; background-repeat:repeat; background-size:400px, 666px; background-blend-mode:multiply; background-position:center;}

#wrap{background:#1d0939b8; width:70vw; margin:0 auto; border:3px ridge #5d1f80; border-top:3px ridge #4b206f; display:flex; flex-flow:row nowrap; gap:10px;}
#headbar{width:70vw; margin:0 auto; display:flex; flex-flow:row nowrap; justify-content:space-evenly; padding:3px 0; border:3px ridge #5d1f80; border-bottom:0; background:#8c43a6 url(https://64.media.tumblr.com/tumblr_m55rehqmYn1qj5ffr.png); background-blend-mode:difference; background-size:190px;}

#ltcol, #rtcol{background:#4d1661 url(https://64.media.tumblr.com/tumblr_m55rehqmYn1qj5ffr.png); background-blend-mode:hard-light;}