Prevent sticking login buttons together

signon/templates/signon/login.html

@@ -84,9 +84,9 @@
 
   {% if providers_inactive %}
     <p class="lead">{% trans "You can log in using:" %}</p>
-    <ul class="list-unstyled ml-4">
+    <ul class="list-unstyled">
     {% for provider in providers_inactive %}
-      <li class="row">
+      <li class="row mx-0 my-2">
         <a class="btn btn-primary btn-lg col-md-6" href="{{provider.get_authorization_url}}" role="button">
         {% if provider.icon %}
         <img style="vertical-align: text-top; height: 1em" class="mr-2" src="{{STATIC_URL}}{{provider.icon}}"></img>