How to set actionbar height using appcompat library?

How can I change the actionbar's height? I don't know why this isn't working. This is what have I done:

res/values/styles.xml

<style name="AppBaseTheme" parent="@style/Theme.AppCompat.Light"> <!-- Theme customizations available in newer API levels can go in res/values-vXX/styles.xml, while customizations related to backward-compatibility can go here. --> <item name="actionBarStyle">@style/ActionBarStyle</item> </style> <!-- Application theme. --> <style name="AppTheme" parent="AppBaseTheme"> <!-- All customizations that are NOT specific to a particular API-level can go here. --> </style> 

I have created another styles.xml file, so this way I can use the android's namespace.

res/values-v11/styles.xml

<style name="AppBaseTheme" parent="@style/Theme.AppCompat.Light"> <item name="android:actionBarStyle">@style/ActionBarStyle</item> </style> 

And the actionbar's style file:

res/values/my_custom_style.xml

<?xml version="1.0" encoding="utf-8"?> <resources xmlns:android="http://schemas.android.com/apk/res/android"> <style name="ActionBarStyle" parent="@style/Widget.AppCompat.ActionBar"> <item name="android:height">80dp</item> <item name="height">80dp</item> </style> </resources> 

The manifest file:

<application android:icon="@drawable/ic_launcher" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:screenOrientation="portrait" /> </application> 

This isn't working, the height didn't change. I have tested on Android 4.4.2.