#codeField{width:9.5ch;background:repeating-linear-gradient(90deg, dimgrey 0, dimgrey 1ch, transparent 0, transparent 1.5ch) 50% 90%/8.5ch 2px no-repeat;color:dimgray;font:5ch consolas,monospace;letter-spacing:.5ch;padding:0;padding-left:.5ch}#codeField:focus{outline:none}#codeField{border:none}