Update CSS.

src/display/css_html_js.py

@@ -75,7 +75,7 @@ custom_css = """
 .f1-grid-cell:nth-child(3n+1) { border-left: none; }
 .f1-grid-head .f1-grid-cell { font-weight: 600; text-align: center; border-top: none; }
 
-#f1-login-box { width: 800px; }
+#f1-login-box { width: 800px; margin: auto; }
 
 /* Leaderboard: cap width at 800px and center; keep your chain rule */
 #formulaone-leaderboard-tab-table { max-width: 800px; margin-left: auto; margin-right: auto; }