title: layout_margin in CardView is not working properly
body: <p>I am playing with the new <strong>CardView</strong>, but the margins don't seem to be applying.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  
  &lt;android.support.v7.widget.CardView
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:card_view="http://schemas.android.com/apk/res-auto"
  android:id="@+id/card_view"
  android:layout_gravity="center"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:layout_marginTop="18dp"
  android:layout_marginLeft="18dp"
  android:layout_marginRight="18dp"
  card_view:cardCornerRadius="4dp"
  card_view:cardBackgroundColor="#FFA"
  card_view:layout_margind="4dp"&gt;
  
  &lt;LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical"&gt;
  
  &lt;TextView
      android:id="@+id/info_text"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Hello World!"/&gt;
  
  &lt;TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Hello World!"/&gt;
  
  &lt;TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Hello World!"/&gt;
  
  &lt;TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Hello World!"/&gt;
  
  &lt;TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Hello World!"/&gt;
  
  &lt;/LinearLayout&gt;
  
  &lt;/android.support.v7.widget.CardView&gt;
  </code></pre>
  
  <p>By the way, I'm using it in a <strong>Fragment</strong> that is in a <strong>ViewPager</strong>. The card extends the entire width of the screen (<strong>match_parent</strong>) even though I am using <code>android:layout_marginLeft="18dp"</code> and <code>android:layout_marginRight="18dp"</code> on the <strong>CardView</strong>.</p>
  
  <p>Any ideas what I might be doing wrong?</p>