diff --git a/src/devtools/App.vue b/src/devtools/App.vue
index aa0149643..5a6b46777 100644
--- a/src/devtools/App.vue
+++ b/src/devtools/App.vue
@@ -374,6 +374,8 @@ export default {
   padding-bottom 0 !important
 
 .container
+  height: calc(100% - 60px)
+  position relative
   overflow hidden
   flex 1
 
diff --git a/src/devtools/components/SplitPane.vue b/src/devtools/components/SplitPane.vue
index fc80b37cc..09f2b5e74 100644
--- a/src/devtools/components/SplitPane.vue
+++ b/src/devtools/components/SplitPane.vue
@@ -123,6 +123,7 @@ export default {
 .left,
 .right
   position relative
+  height 100%
 
 .horizontal
   .bottom