Fix code scrolling

Author: Warry

resources/css/bootstrap.css

@@ -994,10 +994,7 @@ pre {
   margin: 0 0 10px;
   font-size: 13px;
   line-height: 20px;
-  word-break: break-all;
-  word-wrap: break-word;
   white-space: pre;
-  white-space: pre-wrap;
   background-color: #f5f5f5;
   border: 1px solid #ccc;
   border: 1px solid rgba(0, 0, 0, 0.15);
@@ -1014,7 +1011,6 @@ pre code {
   padding: 0;
   color: inherit;
   white-space: pre;
-  white-space: pre-wrap;
   background-color: transparent;
   border: 0;
 }