diff --git a/frontend/package.json b/frontend/package.json
index c40395ad4f..fce213e62e 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -49,6 +49,7 @@
"vue-codemirror": "^4.0.6",
"vue-fullscreen": "^2.5.2",
"vue-i18n": "7.3.2",
+ "vue-proportion-directive": "^1.1.0",
"vue-router": "3.0.6",
"vue-to-pdf": "^1.0.0",
"vue-uuid": "2.0.2",
diff --git a/frontend/src/components/DeDrag/index.vue b/frontend/src/components/DeDrag/index.vue
index 49adf6b611..20dd0b5074 100644
--- a/frontend/src/components/DeDrag/index.vue
+++ b/frontend/src/components/DeDrag/index.vue
@@ -29,7 +29,8 @@
]"
:style="mainSlotStyle"
>
-