Add hover classes on Locations continents filers

src/style/organisms/_locations.scss

@@ -1,5 +1,6 @@
 .browse {
     margin: 96px 0;
+    text-align: center;
 
     @include bp (sm) {
         margin-bottom: 128px;
@@ -24,14 +25,24 @@
 
     // Continents
     &__continents {
-        display: flex;
+        display: inline-flex;
         justify-content: center;
         text-align: center;
+        margin: 0 auto;
 
+        &:hover {
+            li {
+                opacity: 0.4;
+            }
+        }
         li {
             display: block;
             margin: 0 8px;
-            transition: opacity 0.5s var(--ease-quart);
+            transition: opacity 0.6s var(--ease-quart);
+
+            &:hover {
+                opacity: 1;
+            }
         }
 
         // Disabled button