fix:quick fix

src/containers/App/App.css

@@ -302,7 +302,7 @@ footer a:hover {
 
 .promotion-video {
   width: 100%;
-  height: auto; /* 设置高度为视口高度的80% */
+  height: 100%; /* 设置高度为视口高度的80% */
   border: none; 
   border-radius: 30px; /* 圆角效果 */
 }

src/contents/home.tsx

@@ -61,7 +61,7 @@ export function Home() {
           </div>
 
           <div className="row full-height-element">
-            <p className="center-text h1">Stream our Promotion Video</p>
+            <p className="center-text h1 pb-0 mb-0">Stream our Promotion Video</p>
             <div className="col-1"></div>
             <div className="col-10 mb-5">
                 <iframe