diff --git a/core/includes/menu.inc b/core/includes/menu.inc
index 2e55366..65c14ee 100644
--- a/core/includes/menu.inc
+++ b/core/includes/menu.inc
@@ -1659,7 +1659,7 @@ function theme_menu_local_action($variables) {
     'localized_options' => array(),
   );
   $link['localized_options']['attributes']['class'][] = 'button';
-  $link['localized_options']['attributes']['class'][] = 'add';
+  $link['localized_options']['attributes']['class'][] = 'button-add';
 
   $output = '<li>';
   $output .= l($link['title'], $link['href'], $link['localized_options']);
diff --git a/core/modules/system/system.theme-rtl.css b/core/modules/system/system.theme-rtl.css
index 27b8ce7..04473b2 100644
--- a/core/modules/system/system.theme-rtl.css
+++ b/core/modules/system/system.theme-rtl.css
@@ -82,7 +82,7 @@ ul.menu {
   margin-left: auto;
   margin-right: 0;
 }
-a.button.add:before {
+.button-add:before {
   margin-left: 0;
   margin-right: -0.1em;
   padding-left: 0.2em;
diff --git a/core/modules/system/system.theme.css b/core/modules/system/system.theme.css
index 6a4a64d..f0a00cb 100644
--- a/core/modules/system/system.theme.css
+++ b/core/modules/system/system.theme.css
@@ -349,13 +349,13 @@ ul.tabs {
 .action-links li:first-child {
   margin-left: 0; /* LTR */
 }
-a.button {
+.button {
   display: inline-block;
   line-height: 160%;
   padding: 0.2em 0.5em 0.3em;
   text-decoration: none;
 }
-a.button.add:before {
+.button-add:before {
   content: '+';
   font-weight: 900;
   margin-left: -0.1em; /* LTR */
diff --git a/core/themes/seven/style.css b/core/themes/seven/style.css
index cfd76c5..d0c0173 100644
--- a/core/themes/seven/style.css
+++ b/core/themes/seven/style.css
@@ -636,10 +636,10 @@ button,
   border-right-color: #d2d2d2;
   background-color: #e4e4e4;
   border-radius: 20px;
+  text-decoration: none;
 }
 button:focus,
 button:hover,
-.button:link,
 .button:visited,
 .button:focus,
 .button:hover {
@@ -732,7 +732,7 @@ select.form-select:focus {
 .js input.throbbing {
   background-position: 100% -16px;
 }
-a.button.add {
+.button-add {
   background: #1078d8;
   background-image: -webkit-linear-gradient(top, #419ff1, #1076d5);
   background-image: -moz-linear-gradient(top, #419ff1, #1076d5);
@@ -749,8 +749,8 @@ a.button.add {
   padding: 4px 1em;
   text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.5);
 }
-a.button.add:focus,
-a.button.add:hover {
+.button-add:focus,
+.button-add:hover {
   background-color: #419cf1;
   background-image: -webkit-linear-gradient(top, #59abf3, #2a90ef);
   background-image: -moz-linear-gradient(top, #59abf3, #2a90ef);
@@ -758,7 +758,7 @@ a.button.add:hover {
   background-image: linear-gradient(to bottom, #59abf3, #2a90ef);
   color: #fff;
 }
-a.button.add:active {
+.button-add:active {
   background-color: #0e69be;
   background-image: -webkit-linear-gradient(top, #0e69be, #2a93ef);
   background-image: -moz-linear-gradient(top, #0e69be, #2a93ef);