diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 00000000..034e8480
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,21 @@
+# Security Policy
+
+## Supported Versions
+
+Use this section to tell people about which versions of your project are
+currently being supported with security updates.
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 5.1.x   | :white_check_mark: |
+| 5.0.x   | :x:                |
+| 4.0.x   | :white_check_mark: |
+| < 4.0   | :x:                |
+
+## Reporting a Vulnerability
+
+Use this section to tell people how to report a vulnerability.
+
+Tell them where to go, how often they can expect to get an update on a
+reported vulnerability, what to expect if the vulnerability is accepted or
+declined, etc.
diff --git a/popup/popup.css b/popup/popup.css
index d1412f36..9fc334f8 100644
--- a/popup/popup.css
+++ b/popup/popup.css
@@ -89,7 +89,7 @@
   }
 
   input[type="email"] {
-    width: 100%;
+    width: 93%;
     padding: 10px;
     margin-bottom: 16px;
     border: 1px solid #000000;