Letter N
I solved it on September 23, 2022. You can try to beat my record on CSSBattle!
219 chars
<body bgcolor=998235><p j><p k><p i><style>p{background:#0B2429;position:fixed}[i]{padding:115 20;margin:62 127}[j]{padding:115 20;margin:-8 217}[k]{padding:80 21;margin:62 171;background:#FCBE5C;transform:skewX(20deg)}