diff --git a/_config.yml b/_config.yml
index 7ea8d7c..37b2d48 100755
--- a/_config.yml
+++ b/_config.yml
@@ -8,7 +8,7 @@ info:
   name: Material X
   docs: https://xaoxuu.com/wiki/material-x/
   # 主题的CDN地址。如需启用CDN，请在主目录的config中设置，详见文档。
-  cdn: https://cdn.jsdelivr.net/gh/xaoxuu/cdn-material-x@18.12.41/
+  cdn: https://cdn.jsdelivr.net/gh/xaoxuu/cdn-material-x@18.12.42/
 
 
 ############################### 主题样式 ###############################
diff --git a/layout/_partial/mathjax.ejs b/layout/_partial/mathjax.ejs
index dc3bd9d..ae7c893 100755
--- a/layout/_partial/mathjax.ejs
+++ b/layout/_partial/mathjax.ejs
@@ -26,7 +26,7 @@
   MathJax.Hub.Queue(function() {
     var all = MathJax.Hub.getAllJax(), i;
     for(i=0; i < all.length; i += 1) {
-      all[i].SourceElement().parentNode.className += ' has-jax';
+      all[i].SourceElement().parentNode.className += (all[i].SourceElement().parentNode.className ? ' ' : '') + 'has-jax';
     }
     console.log("mathjax did loaded!");
   });
diff --git a/source/less/_article.less b/source/less/_article.less
index 18445fd..95378e7 100755
--- a/source/less/_article.less
+++ b/source/less/_article.less
@@ -43,6 +43,14 @@
           padding-left: 2px;
           padding-right: 2px;
         }
+        max-width: 100%;
+        overflow: auto;
+        .mjx-math{
+          font-family: @fontfamily_code;
+          background: fade(@theme_background, 50%);
+          padding: @gap/2;
+          border-radius: @border_radius_code_block;
+        }
     }
     ul,
     ol {