Replace the a tag inside a div with a button
Add .ol-button-group CSS class name
Add new ol.css.CLASS_ACTIVE constant
buttons: listen to goog.events.EventType.TOUCHEND
Remove button transparency
Simplify custom-controls example
Always use a tag instead of button, better button group style
ol.control.ZoomToExtent: use ol-button class
Custom button text for the ZoomToExtent control
Custom button text for the ZoomToExtent control
Custom button text for the RotateNorth control