diff --git a/modules/base/markdown.go b/modules/base/markdown.go
index a9f4cbf0d7..e49e111c0e 100644
--- a/modules/base/markdown.go
+++ b/modules/base/markdown.go
@@ -36,7 +36,7 @@ func isLink(link []byte) bool {
 func IsMarkdownFile(name string) bool {
 	name = strings.ToLower(name)
 	switch filepath.Ext(name) {
-	case "md", "markdown":
+	case "md", "markdown", "mdown":
 		return true
 	}
 	return false
@@ -61,7 +61,7 @@ type CustomRender struct {
 func (options *CustomRender) Link(out *bytes.Buffer, link []byte, title []byte, content []byte) {
 	if len(link) > 0 && !isLink(link) {
 		if link[0] == '#' {
-			link = append([]byte(options.urlPrefix), link...)
+			// link = append([]byte(options.urlPrefix), link...)
 		} else {
 			link = []byte(path.Join(options.urlPrefix, string(link)))
 		}
diff --git a/public/css/gogs.css b/public/css/gogs.css
index a4767c1c8b..83d1b96fe2 100755
--- a/public/css/gogs.css
+++ b/public/css/gogs.css
@@ -647,6 +647,14 @@ html, body {
     padding: 30px 30px 50px;
 }
 
+.file-content .file-body.file-code {
+    padding: 0;
+}
+
+.file-content .file-body.file-code > pre {
+    border: none;
+}
+
 .branch-list th, .commit-list th {
     background-color: #FFF;
     line-height: 28px !important;
diff --git a/templates/repo/single_file.tmpl b/templates/repo/single_file.tmpl
index b4626053fd..0c1c3713f6 100644
--- a/templates/repo/single_file.tmpl
+++ b/templates/repo/single_file.tmpl
@@ -1,6 +1,10 @@
 <div class="panel panel-default file-content">
     <div class="panel-heading file-head">
-        <i class="icon fa fa-book"></i> {{.FileName}}
+        {{if .ReadmeExist}}
+            <i class="icon fa fa-book"></i>
+        {{else}}
+            <i class="icon fa fa-file-text-o"></i>
+        {{end}}{{.FileName}}
     </div>
     {{if .FileIsLarge}}
         <div class="panel-footer">
@@ -12,8 +16,8 @@
                 {{.FileContent|str2html}}
             </div>
         {{else}}
-            <div class="panel-body file-body markdown">
-                <pre><code>{{.FileContent}}</code></pre>
+            <div class="panel-body file-body file-code markdown">
+                <pre class="linenums"><code>{{.FileContent}}</code></pre>
             </div>
         {{end}}
     {{end}}