diff --git a/resources/static/dialog/css/style.css b/resources/static/dialog/css/style.css
index c96302243..bc6663f49 100644
--- a/resources/static/dialog/css/style.css
+++ b/resources/static/dialog/css/style.css
@@ -323,7 +323,8 @@ section > .contents {
     position: absolute;
     top: 0;
     bottom: 0;
-    left: 0;
+    /* create overlap to avoid flicker during CSS slide transition */
+    left: -1px;
     right: 0;
     background-image: url('data:image/png;base64,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'); /* source: dialog/i/arrow_grey.png */
     background-repeat: no-repeat;