Merge pull request #159 from alphagov/edit-template-textbox-width

Make ‘edit template’ textboxes the same width

app/assets/javascripts/highlightTags.js

@@ -23,6 +23,10 @@
         .on("input", this.update)
         .on("scroll", this.maintainScrollParity);
 
+      this.$backgroundMaskForeground.width(
+        this.$textbox.width()
+      );
+
       this.$textbox
         .trigger("input");
 

app/assets/stylesheets/components/textbox.scss

@@ -18,11 +18,10 @@
     display: block;
     box-sizing: border-box;
     position: relative;
-    width: 500px;
-    height: 200px;
     margin: 0;
     padding: 4px;
     overflow: hidden;
+    height: 200px;
   }
 
   &-background,