scoreboard-xcpcio: fix #1137

Author: undefined-moe

packages/scoreboard-xcpcio/templates/xcpcio_board.html

@@ -28,6 +28,7 @@
     table { border-spacing: 2px; }
     th { text-align: center; }
     td.unattempted, td.empty { background-color: transparent !important; }
+    #app main { overflow-y: auto; overflow-x: hidden; }
 </style>
 <script type="module" crossorigin src="{{ '/' if process.env.DEV else UiContext.cdn_prefix }}assets/index-{{ js }}.js"></script>
 <link rel="stylesheet" crossorigin href="{{ '/' if process.env.DEV else UiContext.cdn_prefix }}assets/index-{{ css }}.css">