-ChatLine[format="bold"] { font-weight: bold; }
-ChatLine[format="italic"] { font-style: italic; }
-ChatLine[format="underline"] { font-style: underline; }
+ChatLine[format="bold"] { font-weight: bold; }
+ChatLine[format="italic"] { font-style: italic; }
+ChatLine[format="underline"] { font-style: underline; }
+ChatLine[format="strikethrough"] { font-style: strikethrough; }