diff --git a/src/components/app/t-itemBox.vue b/src/components/app/t-itemBox.vue
index 3974d26c..ccf6481c 100644
--- a/src/components/app/t-itemBox.vue
+++ b/src/components/app/t-itemBox.vue
@@ -145,6 +145,7 @@ const props = defineProps<TItemBoxProps>();
   display: flex;
   width: 100%;
   height: v-bind("props.modelValue.innerHeight ?? 0") px;
+  flex-grow: 1;
   flex-shrink: 0;
   align-items: center;
   justify-content: center;