在学生列表，点击学生积分之后，a标签有下划线

app/views/courses/_show_member_score.html.erb

@@ -1,24 +1,5 @@
 <style>
-    table,tr,td{border:0; cellspacing:0; cellpadding:0;}
-    ul,li{ list-style-type:none}
-    .cl{ clear:both; overflow:hidden; }
-    a{ text-decoration:none; text-align:center; }
-    a:hover{ text-decoration:underline;}
-    /**** 常用***/
-    .f_l{ float:left;}
-    .f_r{ float:right;}
-    .b_lblue{ background:#64bdd9;}
-    .b_dblue{ background:#55a1b9; cursor:pointer;}
-    .f_b{ font-weight: bold;}
-    .c_blue{ color:#64bdd9;}
-    .c_grey{ color:#999999;}
     .c_grey02{ color:#666666;}
-    .f_14{ font-size:14px;}
-    .c_dblue{ color:#3e6d8e;}
-    .w90{width:90px;}
-    .ml10{margin-left:10px;}
-    .ml5{margin-left:5px;}
-    .b_grey{ background:#a3a3a3;}
     .c_blue02{ color:#15bcce; font-weight: bold;}
     .w280{ display:block; width:280px;float:left;}
     .w70{ display:block;width:70px; text-align:center; float:left;}
@@ -26,9 +7,6 @@
     .c_blue03{ color:#0d90c4;}
 
 
-    /***弹框***/
-    /*#popbox_tscore{width:480px;position:absolute;z-index:100;left:50%;top:50%;margin:-215px 0 0 -300px;  background:#fff; -moz-border-radius:5px;  -webkit-border-radius:5px;  border-radius:5px; box-shadow:0px 0px 8px #194a81;  overflow:auto;}*/
-    /*.alert .close02{width:26px;height:26px;overflow:hidden;position:absolute;top:-10px;right:-490px;background:url(images/close.png) no-repeat;cursor:pointer;}*/
     .tscore_con h2{ display:block; background:#eaeaea; font-size:14px; color:#343333; height:31px; width: auto;  text-align: center; padding-top:5px;}
     .tscore_box{ width:350px; margin:15px auto;}
     .tscore_box li{ height:25px;}
@@ -40,11 +18,16 @@
     <ul class="tscore_box">
       <li ><span class="c_blue02 w280">作业名称</span><span class="c_blue02 w70">得分</span></li>
       <% @member_score.student_homework_score[0].each do |homework_score| %>
-
-            <li><span class="c_grey02 w280"><%= homework_score.name %></span><span class="c_red w70"><%= format("%0.2f",homework_score[:score].nil? ? 0 : homework_score[:score]) %></span></li>
+            <li>
+              <span class="c_grey02 w280">
+                <%= homework_score.name %>
+              </span>
+              <span class="c_red w70">
+                <%= format("%0.2f",homework_score[:score].nil? ? 0 : homework_score[:score]) %>
+              </span>
+            </li>
        <% end %>
       <li><span class="c_blue03 w280">作业积分（总得分）</span><span class="c_red w70"><%= @member_score.student_homework_score[1] %></span></li>
     </ul>
 
-
   </div>