diff --git a/src/render/font-metrics.ts b/src/render/font-metrics.ts
index f40555c..828e4ee 100644
--- a/src/render/font-metrics.ts
+++ b/src/render/font-metrics.ts
@@ -38,6 +38,7 @@ export class FontMetrics {
         img.style.margin = '0';
         img.style.padding = '0';
         img.style.verticalAlign = 'baseline';
+        img.style.display = 'inline';
 
         span.style.fontFamily = fontFamily;
         span.style.fontSize = fontSize;
diff --git a/tests/reftests/text/text.html b/tests/reftests/text/text.html
index 66e4021..e067e0d 100644
--- a/tests/reftests/text/text.html
+++ b/tests/reftests/text/text.html
@@ -14,6 +14,10 @@
             line-height: 1vw;
         }
 
+        img {
+            display: block;
+        }
+
         .medium {
             font-size: 18px;
             line-height: 2vw;