diff --git a/platform/safari/vapi-common.js b/platform/safari/vapi-common.js
index 505815b5c..4a607500e 100644
--- a/platform/safari/vapi-common.js
+++ b/platform/safari/vapi-common.js
@@ -36,7 +36,7 @@ self.vAPI = self.vAPI || {};
 var setScriptDirection = function(language) {
     document.body.setAttribute(
         'dir',
-        ~['ar', 'he', 'fa', 'ps', 'ur'].indexOf(language) ? 'rtl' : 'ltr'
+        ['ar', 'he', 'fa', 'ps', 'ur'].indexOf(language) !== -1 ? 'rtl' : 'ltr'
     );
 };
 
@@ -78,11 +78,11 @@ vAPI.getURL = function(path) {
 // first language is the default
 vAPI.i18nData = [
     'en', 'ar', 'cs', 'da', 'de', 'el', 'es', 'et', 'fi', 'fil', 'fr', 'he',
-    'hi', 'hr', 'hu', 'id', 'it', 'ja', 'mr', 'nb', 'nl', 'pl', 'pt_BR',
-    'pt_PT', 'ro', 'ru', 'sv', 'tr', 'uk', 'vi', 'zh_CN'
+    'hi', 'hr', 'hu', 'id', 'it', 'ja', 'mr', 'nb', 'nl', 'pl', 'pt-BR',
+    'pt-PT', 'ro', 'ru', 'sv', 'tr', 'uk', 'vi', 'zh-CN'
 ];
 
-vAPI.i18n = navigator.language.replace('-', '_');
+vAPI.i18n = navigator.language;
 
 if (vAPI.i18nData.indexOf(vAPI.i18n) === -1) {
     vAPI.i18n = vAPI.i18n.slice(0, 2);
diff --git a/src/css/popup.css b/src/css/popup.css
index 62f8b11f5..3a832fd2e 100644
--- a/src/css/popup.css
+++ b/src/css/popup.css
@@ -84,14 +84,14 @@ p {
     background-color: #fffff4;
     border: 1px solid #888;
     border-radius: 5px;
-    bottom: 20vh;
+    bottom: 20%;
     box-shadow: 1px 1px 2px 0 rgba(0,0,0,0.8);
     display: none;
     font-size: small;
-    left: 8vw;
+    left: 8%;
     padding: 0.25em;
     position: fixed;
-    right: 8vw;
+    right: 8%;
     text-align: center;
     }
 .dynamicFiltering div:not(.blocked):hover > .tip:nth-of-type(1) {