<div class="box-1">text</div> <div class="box-2">text</div> <div class="box-3">text</div> <div class="box-4">text</div> <div class="boxs-1">text</div> <div class="boxs-2">text</div> <div class="boxs-3">text</div> <div class="boxs-4">text</div>
div[class*="box-"] {
color:blue;
}