diff --git a/css/details.css b/css/details.css
index 6231fe5..045ab58 100644
--- a/css/details.css
+++ b/css/details.css
@@ -1173,6 +1173,7 @@
 }
 .content .details-box .demand.demand-new {
   padding-bottom: 0;
+  position: relative;
 }
 .content .details-box .demand.demand-new.arrowShow {
   height: 400px;
@@ -1249,6 +1250,11 @@
 .content .details-box .demand .demand-bottom {
   height: 48px;
   cursor: pointer;
+  position: absolute;
+  left: 0;
+  bottom: 0;
+  width: 100%;
+  background: rgba(255, 255, 255, 0.98);
 }
 .content .details-box .demand .demand-bottom .bottom-icon {
   width: 20px;
diff --git a/css/details.less b/css/details.less
index 54a0f99..ece6966 100644
--- a/css/details.less
+++ b/css/details.less
@@ -1336,6 +1336,7 @@
 
             &.demand-new {
                 padding-bottom: 0;
+                position: relative;
 
                 &.arrowShow {
                     height: 400px;
@@ -1423,7 +1424,11 @@
             .demand-bottom {
                 height: 48px;
                 cursor: pointer;
-
+                position: absolute;
+                left: 0;
+                bottom: 0;
+                width: 100%;
+                background: rgba(255, 255, 255, 0.98);
                 .bottom-icon {
                     width: 20px;
                     height: 20px;