css to change a tag hover color code example

Example 1: css a href hover effect

/* css code */
body{
   background-color: #000;
}
.container{            
   top: 50%;
   left: 50%;
   transform: translateX(-50%) translateY(-50%);
   position: absolute;
}
li{
   list-style: none;
   display: inline-block;
}
a{
   text-decoration: none;
   color:#fff;
   font-size: 24px;
   padding: 0 20px;
   display: inline-block;
}
.link::after{
   content: '';
   display: block;
   width: 0;
   height: 2px;
   transition: width .3s;
   background-color: #fff;
}
.link:hover::after{
   width: 100%;
   transition: width .3s;
}

/* html code */

    
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Example 2: how to chane text color when hover in css

CSS
.link { color: #FF0000; } /* CSS link color (red) */
.link:hover { color: #00FF00; } /* CSS link hover (green) */