fix: min-width, min-heightのつけ忘れ

src/scss/modules/pc/_end-animation.scss

@@ -3,6 +3,7 @@
     position: absolute;
     top: 0; left: 0;
     width: 100%; height: 100%;
+    min-width: $min-width; min-height: $min-height;
     overflow: hidden;
     z-index: 997;
   }