Ion-nav-buttons are not in-line

The buttons inside my ion-nav-bar are not in-line.

I have two buttons, left and right. However, the right side button is off center.

My markup is:

<ion-nav-bar class="bar-positive">
		<ion-nav-buttons side="left"><button class="button button-icon ion-navicon" ng-click="openMenu()"></button></ion-nav-buttons>
		<ion-nav-buttons side="right"><button class="button button-icon ion-power" ng-click="onOffService()"></button></ion-nav-buttons>
		<ion-nav-view name="mainContent"></ion-nav-view> 

I have made no css modifications. Here is what the bar looks like: