Styling <hr> Element

hr{
margin: 0 0 2px 16px;
padding: 3px 0 0 0;
border-bottom:1px solid #a8a7a2;
border-top:0px;
border-left:0px;
border-right:0px;
line-height:0px;
height:1px;
display:block;
width: 97%;
}