show image in list style css code example

Example 1: css list style url siz

li{
   list-style: none;
}
li:before{
   content: '';
   display: inline-block;
   height: y;
   width: x;
   background-image: url();
}

Example 2: ul list style type image

ul {
  list-style-image: url('sqpurple.gif');
}