diff --git a/dashboard/web/pages/SignIn.css b/dashboard/web/pages/SignIn.css
index 842f49ab6883c7c9223c0847f94199ed5126fe25..efa889601b3f75c39c67f4fafdab262145c20d95 100644
--- a/dashboard/web/pages/SignIn.css
+++ b/dashboard/web/pages/SignIn.css
@@ -14,6 +14,7 @@ body { font: 16px "Name Sans", sans-serif; }
   grid-template-columns: 20px minmax(0, 1fr) 20px;
   align-items: center;
   height: 36px;
+  border: 2px solid rgb(0 0 0 / .5);
   padding: 0 12px;
   text-align: center;
   text-decoration: none;
@@ -22,7 +23,7 @@ body { font: 16px "Name Sans", sans-serif; }
 }
 .guest-providers a[data-provider="astheno"] { background-color: #3c4a29; color: white; }
 .guest-providers a[data-provider="astheno"]:hover { background-color: #4d5e35; }
-.guest-providers a[data-provider="github"] { background-color: white; color: #24292f; border: 1px solid #d1d9e0; }
+.guest-providers a[data-provider="github"] { background-color: white; color: #24292f; }
 .guest-providers a[data-provider="github"]:hover { background-color: #f0f3f6; }
 .guest-providers a:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; }
 .guest-providers svg, .guest-providers img { display: block; }