<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@android:color/black"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/backButton"
        style="?android:borderlessButtonStyle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:clickable="true"
        app:background="@android:color/transparent"
        app:backgroundTint="@null"
        app:rippleColor="@null"
        app:srcCompat="?attr/homeAsUpIndicator" />

    <WebView
        android:id="@+id/webcontent"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>