优化比赛排名表格效果

template/src/oj/contest/contest_rank.html

@@ -31,7 +31,7 @@
                     {% endif %})
                 </h2>
                 {% if rank %}
-                    <table class="table table-bordered text-center">
+                    <table class="table table-bordered table-condensed text-center">
                         <thead>
                         <tr>
                             <th>#</th>