Update proj5.html

Author: cjxthecoder

project-5/proj5.html

@@ -37,7 +37,7 @@
 text-align: center;
 }
 figure img {
-max-width: 280px;
+max-width: min(50vw, 640px);
 border-radius: 6px;
 border: 1px solid #ddd;
 }