diff --git a/public/react/src/modules/tpm/NewHeader.js b/public/react/src/modules/tpm/NewHeader.js
index 133f47037..d197bc9c4 100644
--- a/public/react/src/modules/tpm/NewHeader.js
+++ b/public/react/src/modules/tpm/NewHeader.js
@@ -649,7 +649,7 @@ submittojoinclass=(value)=>{
 					{...this.state}
 					{...this.props}
 				/>:""}
-				<a href="/" className={"ml20 fl"}>
+				<a href="/" className={" fl"}>
 					<img alt="高校智能化教学与实训平台" className="logoimg" src={getImageUrl("images/educoder/headNavLogo.png?1526520218")}></img>
 				</a>
 				<div className="educontent">