<div class="dia-line-v"></div>

.dia-line-v{
height:16px;
background-image:
linear-gradient(45deg,#fff 25%,transparent 25%,transparent 75%,#fff 75%),
linear-gradient(-45deg,#fff 25%,#808 25%, #808 75%,#fff 75%);
background-size:16px 16px;
margin:5px 0px;
}