Update admin.css

src/static/web/css/admin.css

@@ -99,7 +99,7 @@ body.menu-show .body-right{left:220px;transition:all 0.5s}
 .cls{clear:both}
 .helpinfo{float:left;display:none;padding:10px;width:100%;background:var(--bg);border:1px solid var(--gray-300);border-radius:0.5rem}
 .tips-box{margin:70px auto 0;width:500px;height:auto;background:var(--white);border-radius:0.5rem;box-shadow:0 0.125rem 0.25rem rgba(0,0,0,0.075)}
-.tips-head{margin:0 20px;padding:18px 0;border-bottom:1px solid var(--bg)}
+.tips-head{margin:0 20px;padding:18px 0;border-bottom:1px solid var(--light)}
 .tips-head p{margin:0;padding-left:10px;line-height:16px;color:var(--gray-dark);text-align:left;border-left:3px solid var(--yellow)}
 .tips-body{padding:20px;min-height:160px;color:var(--gray);word-break:break-all;word-wrap:break-word}
 #toolimg{position:absolute;display:none}