修正

style.css

@@ -214,6 +214,7 @@ body .arrow:hover {
   width: 100vw;
   -o-object-fit: cover;
      object-fit: cover;
+  height: 95vh;
   -webkit-animation-name: Picture;
           animation-name: Picture;
   -webkit-animation-duration: 1s;

style.scss

@@ -181,6 +181,7 @@ body {
         .banner-img{
             width: 100vw;
             object-fit: cover;
+            height: 95vh;
             animation-name:Picture;
             animation-duration: 1s;
             @media screen and(max-width:$moblie) {