bug fixes

pages/about/teacher.vue

@@ -116,8 +116,9 @@ export default {
   .teacher-content-box {
     width: 1200px;
     margin: 0 auto;
-    padding-left: 100px;
+    padding: 56px 0;
     .content-box {
+      background-color: #fff;
       padding: 60px 75px 61px;
       .teacher-box {
         .title {