diff --git a/templates/user/auth/signin_inner.tmpl b/templates/user/auth/signin_inner.tmpl
index bf1cc05..0dd10bb 100644
--- a/templates/user/auth/signin_inner.tmpl
+++ b/templates/user/auth/signin_inner.tmpl
@@ -11,6 +11,21 @@
 		<div class="ui attached segment">
 			<form class="ui form" action="{{.SignInLink}}" method="post">
 			{{.CsrfTokenHtml}}
+
+			{{if and .OrderedOAuth2Names .OAuth2Providers}}
+			<div class="oauth center">
+				<div>
+					{{range $key := .OrderedOAuth2Names}}
+					{{$provider := index $.OAuth2Providers $key}}
+					<a href="{{AppSubUrl}}/user/oauth2/{{$key}}"><img style="width: 80px; height: auto; margin: 20px;" alt="{{$provider.DisplayName}}{{if eq $provider.Name "openidConnect"}} ({{$key}}){{end}}" title="{{$provider.DisplayName}}{{if eq $provider.Name "openidConnect"}} ({{$key}}){{end}}" class="{{$provider.Name}}" src="{{AppSubUrl}}{{$provider.Image}}"></a>
+					{{end}}
+				</div>
+				<p>Please log in with one of these identity providers.</p>
+				<p style="font-style: italic;">(apologies for limiting your choice of identity provider; it's a compromise for the time being. When will <a href="https://openid.net/">OpenID</a>, <a href="https://webid.info/">WebID</a>, <a href="https://en.wikipedia.org/wiki/BrowserID">BrowserID</a> or whatever vendor-neutral solution finally be adopted widely?)</p>
+			</div>
+			{{end}}
+
+			<details style="margin-top: 2em;"><summary style="color: lightgrey;">Staff entrance</summary>
 			<div class="required inline field {{if and (.Err_UserName) (or (not .LinkAccountMode) (and .LinkAccountMode .LinkAccountModeSignIn))}}error{{end}}">
 				<label for="user_name">{{.i18n.Tr "home.uname_holder"}}</label>
 				<input id="user_name" name="user_name" value="{{.user_name}}" autofocus required>
@@ -47,18 +62,6 @@
 					<a href="{{AppSubUrl}}/user/sign_up">{{.i18n.Tr "auth.sign_up_now" | Str2html}}</a>
 				</div>
 			{{end}}
-
-			{{if and .OrderedOAuth2Names .OAuth2Providers}}
-			<div class="ui attached segment">
-				<div class="oauth2 center">
-					<div>
-						<p>{{.i18n.Tr "sign_in_with"}}</p>{{range $key := .OrderedOAuth2Names}}
-						{{$provider := index $.OAuth2Providers $key}}
-						<a href="{{AppSubUrl}}/user/oauth2/{{$key}}"><img alt="{{$provider.DisplayName}}{{if eq $provider.Name "openidConnect"}} ({{$key}}){{end}}" title="{{$provider.DisplayName}}{{if eq $provider.Name "openidConnect"}} ({{$key}}){{end}}" class="{{$provider.Name}}" src="{{AppSubUrl}}{{$provider.Image}}"></a>
-						{{end}}
-					</div>
-				</div>
-			</div>
-			{{end}}
+			</details>
 			</form>
 		</div>