Fix incorrect em unit calculation in CssBoxProperties

chenjt2001 · chenjt2001 · commit 37a5b82f9e91 · 2026-06-04T19:36:36.000+08:00
diff --git a/Source/HtmlRenderer/Core/Dom/CssBoxProperties.cs b/Source/HtmlRenderer/Core/Dom/CssBoxProperties.cs
@@ -1432,7 +1432,7 @@ public double ActualBorderSpacingVertical
         /// <returns></returns>
         public double GetEmHeight()
         {
-            return ActualFont.Height;
+            return ActualFont.Size * 96d / 72d;
         }
 
         /// <summary>

Original file line number	Diff line number	Diff line change
`@@ -1432,7 +1432,7 @@ public double ActualBorderSpacingVertical`
`1432`	`1432`	`/// <returns></returns>`
`1433`	`1433`	`public double GetEmHeight()`
`1434`	`1434`	`{`
`1435`		`- return ActualFont.Height;`
	`1435`	`+ return ActualFont.Size * 96d / 72d;`
`1436`	`1436`	`}`
`1437`	`1437`
`1438`	`1438`	`/// <summary>`