Answer:
hover event
Step-by-step explanation:
A hover can be seen and practiced using a web browser because it is usually carried out when a mouse is hovered across an event. the hovering automatically triggers an action and this is possible if the effect and been coded into the web page.
however in mobile browsers this effect cannot work efficiently because it causes buttons to be stuck and the hovered area will have to be tapped for the action to be triggered. hence the hover event is now recognized as a tap event on a mobile browser. this is what makes hovering in mobile browsers to be considered a difficult event