diff --git a/src/common/common.css b/src/common/common.css
index 14fdfd0..29b508d 100644
--- a/src/common/common.css
+++ b/src/common/common.css
@@ -114,6 +114,7 @@ figure {
 
 figure img {
     max-height: 40vh;
+    max-width: 100%;
     margin-left: auto;
     margin-right: auto;
     display: block;