diff --git a/entries/static/entries/js/components/LexicalUnitEdit.js b/entries/static/entries/js/components/LexicalUnitEdit.js
index 79bcee8580c4f5f4d69d14804e544b8ce3751bc3..2af4afa1587b70dc0428b84a73cdd3b5cb44fc4d 100644
--- a/entries/static/entries/js/components/LexicalUnitEdit.js
+++ b/entries/static/entries/js/components/LexicalUnitEdit.js
@@ -27,8 +27,8 @@ const FramePreview = {
     });
   },
   template: `
-    <div :key="unifiedFrameId" class="row">
-      <div class="col h-100 px-1 pt-0 pb-0 overflow-auto" id="frame-preview-left-pane">
+    <div :key="unifiedFrameId" class="row h-100">
+      <div class="col h-100 pr-0 pt-0 pb-0 overflow-auto" id="frame-preview-left-pane">
         <lexical-unit-edit
           :readOnly="true"
           :unifiedFrameId="unifiedFrameId"
diff --git a/entries/static/entries/js/components/main.js b/entries/static/entries/js/components/main.js
index 0d6e02bb34e4a69805295010dba780deae9f61e8..84548894984d005c457907601ba6bb2efed1910d 100644
--- a/entries/static/entries/js/components/main.js
+++ b/entries/static/entries/js/components/main.js
@@ -45,7 +45,7 @@ export default {
     }
   },
   template: `
-    <div v-if="key" :key="key" class="row m-0 p-0 overflow-auto" id="semantics-top-pane">
+    <div v-if="key" :key="key" class="row h-100 m-0 p-0 overflow-auto" id="semantics-top-pane">
       <lexical-unit-display
         v-if="lexicalUnitId && !isEdit"
         :entryId="entryId"