diff --git a/public/react/public/css/edu-all.css b/public/react/public/css/edu-all.css
index d25a6fdde..f51e0e630 100644
--- a/public/react/public/css/edu-all.css
+++ b/public/react/public/css/edu-all.css
@@ -509,7 +509,7 @@ li.li-width7{width: 7%;text-align: left}
     background-position: center;
     background-repeat: no-repeat;
 }
-.invite-tip{position: absolute;top: -5px;right: 140px;color: #fff; box-sizing: border-box;width: 170px;text-align: center;border-radius: 2px;background-color: rgba(5,16,26,0.6)}
+.invite-tip{position: absolute;top: -5px;right: 140px;color: #fff; box-sizing: border-box;width: 170px;text-align: center;border-radius: 2px;background-color: rgba(5,16,26,0.6);z-index: 5000;}
 .inviteTipbtn a{font-size:14px;width: 100%;height: 30px;line-height: 30px;display: block;color: #747A7F;background-color: rgba(5,16,26,0.4)}
 .inviteTipbtn a:hover{color: #4cacff!important;}
 .top-black-trangle{display: block;border-width: 8px;position: absolute;top: -16px;right: 4px;border-style: dashed solid dashed dashed;border-color: transparent transparent rgba(5,16,26,0.6) transparent;font-size: 0;line-height: 0;}
diff --git a/public/stylesheets/educoder/edu-all.css b/public/stylesheets/educoder/edu-all.css
index 5aace2464..3ed8a36c3 100644
--- a/public/stylesheets/educoder/edu-all.css
+++ b/public/stylesheets/educoder/edu-all.css
@@ -513,7 +513,7 @@ li.li-width7{width: 7%;text-align: left}
     background-position: center;
     background-repeat: no-repeat;
 }
-.invite-tip{position: absolute;top: -5px;right: 140px;color: #fff; box-sizing: border-box;width: 170px;text-align: center;border-radius: 2px;background-color: rgba(5,16,26,0.6)}
+.invite-tip{position: absolute;top: -5px;right: 140px;color: #fff; box-sizing: border-box;width: 170px;text-align: center;border-radius: 2px;background-color: rgba(5,16,26,0.6);z-index: 5000;}
 .inviteTipbtn a{font-size:14px;width: 100%;height: 30px;line-height: 30px;display: block;color: #747A7F;background-color: rgba(5,16,26,0.4)}
 .inviteTipbtn a:hover{color: #4cacff!important;}
 .top-black-trangle{display: block;border-width: 8px;position: absolute;top: -16px;right: 4px;border-style: dashed solid dashed dashed;border-color: transparent transparent rgba(5,16,26,0.6) transparent;font-size: 0;line-height: 0;}