diff --git a/BaseModule/src/main/res/mipmap-hdpi/icon_teacher.png b/BaseModule/src/main/res/mipmap-hdpi/icon_teacher.png
new file mode 100644
index 00000000..b143aaac
Binary files /dev/null and b/BaseModule/src/main/res/mipmap-hdpi/icon_teacher.png differ
diff --git a/BaseModule/src/main/res/mipmap-xhdpi/icon_teacher.png b/BaseModule/src/main/res/mipmap-xhdpi/icon_teacher.png
new file mode 100644
index 00000000..5ea2d831
Binary files /dev/null and b/BaseModule/src/main/res/mipmap-xhdpi/icon_teacher.png differ
diff --git a/BaseModule/src/main/res/mipmap-xxhdpi/icon_teacher.png b/BaseModule/src/main/res/mipmap-xxhdpi/icon_teacher.png
new file mode 100644
index 00000000..63a0d7b9
Binary files /dev/null and b/BaseModule/src/main/res/mipmap-xxhdpi/icon_teacher.png differ
diff --git a/MainModule/src/main/res/layout/dialog_sign.xml b/MainModule/src/main/res/layout/dialog_sign.xml
index a71d9386..c6b572d0 100644
--- a/MainModule/src/main/res/layout/dialog_sign.xml
+++ b/MainModule/src/main/res/layout/dialog_sign.xml
@@ -115,7 +115,7 @@
             android:layout_height="wrap_content"
             android:layout_gravity="center_horizontal"
             android:layout_marginHorizontal="@dimen/dp_37"
-            android:layout_marginTop="15dp"
+            android:layout_marginTop="10dp"
             android:layout_marginBottom="20dp"
             android:background="@drawable/bg_r99_e7fe67_90ff86_5cfbbd"
             android:gravity="center"