diff --git a/src/pages/exam/components/item.less b/src/pages/exam/components/item.less
index c5fc4c4c2b18b6622ee24dd6b74a4f036002d150..4c65c2bdf582807193e4ec220fb3252ec1d69e98 100644
--- a/src/pages/exam/components/item.less
+++ b/src/pages/exam/components/item.less
@@ -3,6 +3,7 @@
 .root {
   :global {
     .am-button {
+      background-color: #176aff;
       height: 24px;
       line-height: 24px;
       width: 64px;
diff --git a/src/pages/exam/index.less b/src/pages/exam/index.less
index 733978dd01826cec831bdec1deff521326a008f9..dd14a92511faae93bf3ee5a41834b53d566aa243 100644
--- a/src/pages/exam/index.less
+++ b/src/pages/exam/index.less
@@ -6,7 +6,9 @@
   font-size: @font-size-md;
   .header {
     height: 217px;
+    width: 100%;
     background: url("../../../public/images/exam-header.png") center center no-repeat;
+    background-size: cover;
     position: relative;
     .notice {
       position: absolute;