diff --git a/slides/ws-video/slides.md b/slides/ws-video/slides.md
index ae2f66116e24f2439b41ab8592dfc25f24609b40..bbb016ac83d51b5df7f0763e198c6960efe98008 100644
--- a/slides/ws-video/slides.md
+++ b/slides/ws-video/slides.md
@@ -52,10 +52,10 @@ f-Stop on Photography lenses
 
 <img data-src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Lenses_with_different_apertures.jpg/2560px-Lenses_with_different_apertures.jpg" width="50%"/>
 
-CC BY-SA 4.0 <br>
+<font size=”1”> CC BY-SA 4.0 <br>
 lenses with different aperture <br>
 By: KoeppiK <br>
-https://en.wikipedia.org/wiki/Aperture#/media/File:Lenses_with_different_apertures.jpg
+https://en.wikipedia.org/wiki/Aperture#/media/File:Lenses_with_different_apertures.jpg </font>
 
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