[css-forms-1] Add missing content property to radio checkmark (w3c#13357)

lukewarlow · web-flow · commit 9053795530ed · 2026-01-16T00:25:34.000Z
Without this the radio's checkmark is never generated.
diff --git a/css-forms-1/Overview.bs b/css-forms-1/Overview.bs
@@ -884,7 +884,6 @@ input[type=radio] {
     display: inline-flex;
     align-items: center;
     justify-content: center;
-    content: '';
 }
 
 input[type=radio] {
@@ -896,6 +895,7 @@ input[type=checkbox]:not([switch]):checked::checkmark {
 }
 
 input[type=radio]:checked::checkmark {
+    content: '';
     background-color: currentColor;
     display: inline-block;
     border-radius: inherit;

Original file line number	Diff line number	Diff line change
`@@ -884,7 +884,6 @@ input[type=radio] {`
`884`	`884`	`display: inline-flex;`
`885`	`885`	`align-items: center;`
`886`	`886`	`justify-content: center;`
`887`		`- content: '';`
`888`	`887`	`}`
`889`	`888`
`890`	`889`	`input[type=radio] {`
`@@ -896,6 +895,7 @@ input[type=checkbox]:not([switch]):checked::checkmark {`
`896`	`895`	`}`
`897`	`896`
`898`	`897`	`input[type=radio]:checked::checkmark {`
	`898`	`+ content: '';`
`899`	`899`	`background-color: currentColor;`
`900`	`900`	`display: inline-block;`
`901`	`901`	`border-radius: inherit;`