support layout for embend webview in Fragment

fragment_main.xml

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:showIn="@layout/activity_main"
    tools:context=".MainActivityFragment">


    <WebView
        android:layout_width="match_parent"
        android:layout_height="188dp"
        android:id="@+id/webView"
        android:layout_gravity="center"
        />
    <FrameLayout
        android:id="@+id/customViewContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone"
        />

</LinearLayout>