Title and other CSS fixes

src/style/atoms/_link.scss

@@ -3,24 +3,33 @@
     position: relative;
     display: inline-block;
     margin: 0 6px;
-    padding: 0 8px;
+    padding: 0 4px;
     color: $color-secondary;
     text-decoration: none;
     transition: color 200ms $ease-cubic;
 
+    @include breakpoint (sm) {
+        padding: 0 8px;
+    }
+
     // Line
     &:after {
         content: "";
         position: absolute;
         z-index: -1;
         background-color: rgba($color-secondary, 0.22);
-        height: 14px;
         width: 100%;
-        bottom: 5px;
+        height: 8px;
+        bottom: 3px;
         left: 0;
         border-radius: 50vh;
         transition: all 200ms $ease-cubic;
         transition-delay: 50ms;
+
+        @include breakpoint (sm) {
+            height: 14px;
+            bottom: 5px;
+        }
     }
 
     // Icon