download button improvement

app.py

@@ -18,6 +18,7 @@ css = '''
 
     .file-preview div div:nth-child(3) {
         text-align: right !important;
+        padding: 0.5rem 0;
     }
 
     #preview_img {
@@ -31,6 +32,19 @@ css = '''
         min-height: initial !important;
         padding: 10px 0;
     }
+
+    #preview_file a {
+        border-radius: 0.5rem;
+        padding-top: 0.5rem;
+        padding-bottom: 0.5rem;
+        padding-left: 1rem;
+        padding-right: 1rem;
+        font-size: 1rem;
+        line-height: 1.5rem;
+        font-weight: 600;
+        color: white;
+        background-color: gray;
+    }
 '''
 
 title = "ESRGAN Upscaling With Custom Models"