diff --git a/components/diy/header.vue b/components/diy/header.vue
index ef602c9e..1ff0cda3 100644
--- a/components/diy/header.vue
+++ b/components/diy/header.vue
@@ -130,7 +130,7 @@
         z-index: 2;
         .model-top {
             .roll {
-                width: 780rpx;
+                width: 100%;
                 height: 100%;
                 margin: 0 auto;
                 cursor: pointer;