How can we highlight a region of webpage on hovering mouse over it

Answer 1

No need of JQuery neither JS... just do it with Css pseudo-selector ':hover':

<div class="highlight">some content</div>

<style>
.highlight:hover {
/* set style as you want to highlight the element... for example: */
background:yellow;
}
</style>

(pseudo-selector cannot be define as inlined 'style' attribute)

Answer 2

learn css