diff --git a/app/locales/taiga/locale-en.json b/app/locales/taiga/locale-en.json
index f29ba12f..bfb1cdcc 100644
--- a/app/locales/taiga/locale-en.json
+++ b/app/locales/taiga/locale-en.json
@@ -290,7 +290,8 @@
         "TITLE_LINK_FORGOT_PASSWORD": "Did you forget your password?",
         "ACTION_ENTER": "Enter",
         "ACTION_SIGN_IN": "Login",
-        "PLACEHOLDER_AUTH_PASSWORD": "Password (case sensitive)"
+        "PLACEHOLDER_AUTH_PASSWORD": "Password (case sensitive)",
+        "ALT_LOGIN": "Or login with"
     },
     "LOGIN_FORM": {
         "ERROR_AUTH_INCORRECT": "According to our Oompa Loompas, your username/email or password are incorrect.",
diff --git a/app/partials/includes/modules/invitation-login-form.jade b/app/partials/includes/modules/invitation-login-form.jade
index 816854c2..f9effc25 100644
--- a/app/partials/includes/modules/invitation-login-form.jade
+++ b/app/partials/includes/modules/invitation-login-form.jade
@@ -30,10 +30,15 @@ form.login-form
         )
 
     fieldset
-        a.button-login.button-blackish.submit-button(
+        button.button-green.submit-button(
             type="submit"
-            title="{{'LOGIN_COMMON.ACTION_ENTER' | translate}}"
             translate="LOGIN_COMMON.ACTION_ENTER"
         )
+        
+    .contrib-plugins-wrapper(ng-if="contribPlugins.length")
+        label(translate="LOGIN_COMMON.ALT_LOGIN")
 
-    fieldset(ng-repeat="plugin in contribPlugins|filter:{type: 'auth'}", ng-include="plugin.template")
+        fieldset(
+            ng-repeat="plugin in contribPlugins|filter:{type: 'auth'}"
+            ng-include="plugin.template"
+        )
diff --git a/app/partials/includes/modules/invitation-register-form.jade b/app/partials/includes/modules/invitation-register-form.jade
index 227f9c28..00b7611e 100644
--- a/app/partials/includes/modules/invitation-register-form.jade
+++ b/app/partials/includes/modules/invitation-register-form.jade
@@ -44,11 +44,11 @@ form.register-form
         )
 
     fieldset
-        a.button-register.button-blackish.submit-button(
+        button.button-register.button-green.submit-button(
             type="submit"
             title="{{'REGISTER_FORM.ACTION_SIGN_UP' | translate}}"
             translate="REGISTER_FORM.ACTION_SIGN_UP"
         )
-
+        
     //- Only displays terms notice when terms plugin is loaded.
     tg-terms-of-service-and-privacy-policy-notice
diff --git a/app/partials/includes/modules/login-form.jade b/app/partials/includes/modules/login-form.jade
index 96927f3b..a1582f24 100644
--- a/app/partials/includes/modules/login-form.jade
+++ b/app/partials/includes/modules/login-form.jade
@@ -38,9 +38,12 @@
                 translate="LOGIN_COMMON.ACTION_SIGN_IN"
             )
 
-        fieldset(
-            ng-repeat="plugin in contribPlugins|filter:{type: 'auth'}"
-            ng-include="plugin.template"
-        )
+        .contrib-plugins-wrapper(ng-if="contribPlugins.length")
+            label(translate="LOGIN_COMMON.ALT_LOGIN")
+
+            fieldset(
+                ng-repeat="plugin in contribPlugins|filter:{type: 'auth'}"
+                ng-include="plugin.template"
+            )
 
     tg-public-register-message
diff --git a/app/partials/includes/modules/register-form.jade b/app/partials/includes/modules/register-form.jade
index e5aa9b6b..2c58fdff 100644
--- a/app/partials/includes/modules/register-form.jade
+++ b/app/partials/includes/modules/register-form.jade
@@ -51,11 +51,14 @@ div.register-form-container(tg-register)
                 title="{{'REGISTER_FORM.ACTION_SIGN_UP' | translate}}"
                 translate="REGISTER_FORM.ACTION_SIGN_UP"
             )
+            
+        .contrib-plugins-wrapper(ng-if="contribPlugins.length")
+            label(translate="LOGIN_COMMON.ALT_LOGIN")
 
-        fieldset(
-            ng-repeat="plugin in contribPlugins|filter:{type: 'auth'}"
-            ng-include="plugin.template"
-        )
+            fieldset(
+                ng-repeat="plugin in contribPlugins|filter:{type: 'auth'}"
+                ng-include="plugin.template"
+            )
 
         //- Only displays terms notice when terms plugin is loaded.
         tg-terms-of-service-and-privacy-policy-notice
diff --git a/app/styles/components/buttons.scss b/app/styles/components/buttons.scss
index 071feaf8..388bd258 100755
--- a/app/styles/components/buttons.scss
+++ b/app/styles/components/buttons.scss
@@ -8,7 +8,7 @@
     color: $white;
     cursor: pointer;
     display: inline-block;
-    padding: .4rem 2rem;
+    padding: .6rem 2rem;
     text-align: center;
     text-transform: uppercase;
     transition: all .2s linear;
diff --git a/app/styles/core/base.scss b/app/styles/core/base.scss
index 7b4af1d2..e8761df4 100644
--- a/app/styles/core/base.scss
+++ b/app/styles/core/base.scss
@@ -47,6 +47,7 @@ body {
 
 .wrapper {
     display: flex;
+    height: 100%;
     min-height: $main-height;
 }
 
diff --git a/app/styles/layout/auth.scss b/app/styles/layout/auth.scss
index de95a0c5..aa2a972a 100644
--- a/app/styles/layout/auth.scss
+++ b/app/styles/layout/auth.scss
@@ -23,7 +23,7 @@
     }
     .logo {
         @include font-size(xxlarge);
-        @include font-type(text);
+        @include font-type(light);
         color: $white;
         margin-bottom: 1rem;
         text-align: center;
diff --git a/app/styles/layout/invitation.scss b/app/styles/layout/invitation.scss
index cbdf801c..f2d23cdb 100644
--- a/app/styles/layout/invitation.scss
+++ b/app/styles/layout/invitation.scss
@@ -5,6 +5,7 @@
     background-size: cover;
     display: flex;
     flex: 1;
+    height: 100vh;
     justify-content: center;
     z-index: 999;
     .invitation-container {
@@ -107,4 +108,10 @@
             border-right: 0;
         }
     }
+
+    .contrib-plugins-wrapper {
+        label {
+            color: $whitish;
+        }
+    }
 }
diff --git a/app/styles/modules/auth/login-form.scss b/app/styles/modules/auth/login-form.scss
index 03e5e556..1fabdf05 100644
--- a/app/styles/modules/auth/login-form.scss
+++ b/app/styles/modules/auth/login-form.scss
@@ -10,6 +10,7 @@
             }
         }
     }
+
     .forgot-pass {
         @include font-size(small);
         color: $gray;
diff --git a/app/styles/modules/common/contrib-plugins.scss b/app/styles/modules/common/contrib-plugins.scss
new file mode 100644
index 00000000..26f0d09a
--- /dev/null
+++ b/app/styles/modules/common/contrib-plugins.scss
@@ -0,0 +1,8 @@
+.contrib-plugins-wrapper {
+    margin: 1rem 0 2rem;
+    label {
+        @include font-size(small);
+        display: block;
+        margin-bottom: .5rem;
+    }
+}