diff --git a/web/style.css b/web/style.css
index e6518ea..4b2d232 100644
--- a/web/style.css
+++ b/web/style.css
@@ -85,8 +85,11 @@ a:visited.wide-link {
 }
 
 .full-width-images img {
-    width: 100%;
-    height: auto;
+    display: block;
+    margin-left: auto;
+    margin-right: auto;
+    max-width: 100%;
+    max-height: 100vh;
 }
 
 .site {