.hairlines li{
position: relative;
border:none;
}
.hairlines li:after{
content: '';
position: absolute;
left: 0;
background: #000;
100%;
height: 1px;
transform: scaleY(0.5);
-webkit-transform: scaleY(0.5);
transform-origin: 0 0;
-webkit-transform-origin: 0 0;
}