<Button
    android:layout_marginTop="0dp"
    android:layout_marginBottom="5dp"
    android:layout_marginLeft="40dp"
    android:layout_marginRight="40dp"
    android:id="@+id/buttonLogin"
    android:text="Login"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/ButtonTheme"/>

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>

    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />

    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

    <style name="EditTextTheme">
        <item name="colorControlActivated">@color/colorPrimaryDark</item>
    </style>

    <style name="ButtonTheme">
        <item name="android:background">@color/colorPrimary</item>
        <item name="android:textColor">@color/colorWhite</item>
    </style>
</resources>