update professor pic style- seil

index.html

@@ -181,7 +181,7 @@ <h1 class="mb-0">Professor</h1>
           <div class="col-12 col-md-8 d-flex align-items-center justify-content-center mb-4">
             <div class="text-center" style="flex-shrink: 0;"><img
                    src="/author/seong-jae-hwang/avatar.png" alt="Seong Jae Hwang"
-                   class="img-fluid rounded-circle mb-3" style="max-width: 300px; height: auto;">
+                   class="img-fluid rounded-circle mb-3" style="max-width: 10rem; height: auto;">
             </div>
             <div class="portrait-title ml-5">
               <h2><a href="/author/seong-jae-hwang/">Seong Jae Hwang</a></h2>