Display Icon using css class

.tableIcon-Edit {
    width: 25px;
    height: 23px;
    cursor: pointer;
    background: transparent url(../Content/images/edit.png) no-repeat 0 0;
    display: block;
    /* float: none; */
    /* padding: 0; */
    margin: 0 auto;
}

<span class='tableIcon'></span>