on hover do css code example

Example 1: on hover css

/* Changes an element's color on hover */

.selector {
	background-color: black;
}

.selector:hover {
	background-color: blue;
}

Example 2: hover style html

/* css file */
.callitwhatever:hover
{
    background: none;
}

/* HTMl File */
<li><a href="#" class="callitwhatever"> Logo</a></li>