coachmark setWidth/Height CSS issue

Steps to Reproduce

<a id="menu" iconSclass="z-icon-navicon"/>
<coachmark id="coachmark" height="100px" width="500px" target="menu" position="after_center">More example here.</coachmark>

Current Result

Expected Result

Debug Information

CSS style issue

Workaround

<style>
.z-coachmark-content

</style>