fix

html/static/style/download.css

 .top_info {
-    padding: 0.5rem 0 0.5rem 0.4rem;
+    padding: 0.5rem 0;
     background: #f6f6f6;
     overflow: hidden;
+    text-align: center
 }
 
 .top_info img {
     width: 1.75rem;
     height: 1.75rem;
     border-radius: 0.15rem;
-    float: left;
 }
 
 .top_info .right_info {
-    margin-left: 0.6rem;
-    float: left;
+    margin-top: 0.2rem;
 }
 
 .top_info .right_info .title {
@@ -30,8 +29,7 @@
 }
 
 .top_info .right_info .button {
-    display: block;
-    margin-top: 0.22rem;
+    display: inline-block;
     width: 1.56rem;
     height: 0.56rem;
     line-height: 0.56rem;