satte en klasse på rett element

src/components/DefElement.vue

 <template>
-  <li>
-    <div :class="body.type">
+  <li :class="body.type">
+    <div>
       <span v-for="item in assemble_text" :class="item.type" v-html="item.html"></span>
     </div>
   </li>