title: ProgressBar gap
body: <p><a href="http://i.stack.imgur.com/mgWpY.png" rel="nofollow">Check this image for the progressbar</a></p>
  
  <p>Any idea how to remove that little gap under the ProgressBar?
  How can I achieve no gap? Should it be via java code in the MainActivity or...?
  Here is my Layout xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  xmlns:app="http://schemas.android.com/apk/res-auto"&gt;
  
  &lt;android.support.v7.widget.Toolbar
      android:id="@+id/my_toolbar"
      android:layout_width="match_parent"
      android:layout_height="?attr/actionBarSize"
      android:background="?attr/colorPrimary"
      android:elevation="4dp"
      android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
      app:popupTheme="@style/ThemeOverlay.AppCompat.Light" /&gt;
  
  &lt;ProgressBar
      style="?android:attr/progressBarStyleHorizontal"
      android:layout_width="wrap_content"
      android:layout_height="2.9dp"
      android:id="@+id/progressBar"
      android:background="@android:color/transparent"
      android:layout_alignParentStart="true"
      android:layout_alignParentEnd="true"
      android:layout_alignBottom="@id/my_toolbar"/&gt;
  
  &lt;WebView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/webView"
      android:layout_alignParentEnd="true"
      android:layout_alignParentStart="true"
      android:layout_below="@+id/my_toolbar"
      android:layout_alignParentBottom="true" /&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>