diff --git a/css/style.css b/css/style.css
index 87b5d15..90bd4df 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1305,12 +1305,14 @@
 	margin: 0 97px;
 }
 .about-content-bg>div{
-	display: none;
+	height: 0;
+	padding: 0;
+	overflow: hidden;
 }
 .about-content-bg>div.cur{
-	display: block;
+	height: auto;
 }
-.about-content{
+.about-content.cur{
 	padding-top: 100px;
 }
 /* 公司简介 */
@@ -1318,7 +1320,7 @@
 	padding-bottom: 50px;
 }
 /* 企业文化 */
-.culture-bg{
+.culture-bg.cur{
 	padding: 35px 0 56px;
 	background-image: url(../imgs/about-culture-bg.jpg);
 	background-repeat: no-repeat;
@@ -1374,7 +1376,7 @@
 	line-height: 1.8;
 }
 /* 发展历程 */
-.history{
+.history.cur{
 	padding-top: 50px;
 }
 .history-top{
@@ -1436,9 +1438,9 @@
 
 
 /* 公司荣誉 */
-.honor-content,
-.contact-content,
-.join-content{
+.honor-content.cur,
+.contact-content.cur,
+.join-content.cur{
 	padding: 100px 0 55px;
 	background-color: #f5f7fa;
 	background-image: url(../imgs/news-bg.jpg);