search button style

lms/static/sass/_discussion.scss

@@ -29,12 +29,14 @@ $discussion_input_width: 85%;
     display: inline-block;
     width: flex-grid(12);
     .discussion-link {
+      @include button;
       display: inline-block;
-      margin-left: flex-gutter();
-      @include discussion-font;
-      color: #1d9dd9;
-      margin-top: flex-gutter();
-      font-weight: bold; 
+      margin-left: 1%;
+      color: white;
+      font-weight: bold;
+      text-decoration: none;
+      padding-top: 9px;
+      font-size: inherit;
     }
     .discussion-search-text {
       @include discussion-font;
@@ -45,7 +47,7 @@ $discussion_input_width: 85%;
     }
     .search-within {
       display: block;
-      margin-top: flex-gutter(8);
+      margin-top: flex-gutter();
     }
   }
 

lms/templates/discussion/search_bar.html

@@ -7,7 +7,7 @@ def url_for_search():
 
 <form action="${url_for_search()}" method="get" class="discussion-search-form">
   <input class="search-input" type="text" value="${text}" id="keywords" autocomplete="off"/>
-  <a class="discussion-link" href="javascript:void(0)">Search</a>
+  <a class="discussion-link" href="javascript:void(0)">Search posts</a>
   <div class="search-within">
     <input type="checkbox" id="discussion-search-within-board-${discussion_id}" class="discussion-search-within-board" checked/>
     <label for="discussion-search-within-board-${discussion_id}">Search within board</label>