fix:优化样式

static/css/kancloud.css

@@ -1,11 +1,3 @@
-@font-face {
-    font-family: 'FontAwesome';
-    src: url("../font-awesome/fonts/fontawesome-webfont.eot?v=4.7.0");
-    src: url("../font-awesome/fonts/fontawesome-webfont.eot?#iefix&v=4.7.0") format("embedded-opentype"), url("../font-awesome/fonts/fontawesome-webfont.woff2?v=4.7.0") format("woff2"), url("../plugins/font-awesome/fonts/fontawesome-webfont.woff?v=4.7.0") format("woff"), url("../plugins/font-awesome/fonts/fontawesome-webfont.ttf?v=4.7.0") format("truetype"), url("../plugins/font-awesome/fonts/fontawesome-webfont.svg?v=4.7.0#fontawesomeregular") format("svg");
-    font-weight: normal;
-    font-style: normal;
-}
-
 html,body {
     height: 100%;
     font-size: 12px;

static/editor.md/css/editormd.preview.css

@@ -3111,11 +3111,9 @@
 .editormd-preview-container, .editormd-html-preview {
   text-align: left;
   font-size: 14px;
-  line-height: 1.6;
   padding: 20px;
-  overflow: auto;
   width: 100%;
-  background-color: #fff;
+  line-height: 1.6em;
 }
 .editormd-preview-container blockquote, .editormd-html-preview blockquote {
   color: #2C3E50;

static/js/kancloud.js

@@ -168,7 +168,7 @@ $(function () {
                 var oneItem = $(this);
                 var offsetTop = oneItem.offset().top;
 
-                if(offsetTop-scrollTop < 58){
+                if(offsetTop-scrollTop < 100){
                     oName = "#" + oneItem.attr("name");
                 }
             });