菱形つながりライン
【html】<div class="dia-line-v"></div>
【css】.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;
}
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