bug fix

src/assets/styles/pages.scss

@@ -769,20 +769,20 @@
 // rich-text
 .rich-text {
   display: inline-block;
-  vertical-align: top;
+  vertical-align: middle;
   line-height: 20px;
 
   img[data-is-answer-point] {
     max-width: 100%;
     max-height: 16px;
     display: inline-block;
-    vertical-align: text-top;
+    vertical-align: middle;
     border-bottom: 1px solid #000;
   }
   audio {
     height: 20px;
     display: inline-block;
-    vertical-align: top;
+    vertical-align: middle;
     margin-left: 5px;
     margin-right: 5px;
   }