Facebook / twitter计数盒css

Question

我只是问如何用css边框样式制作这些盒子？

由于

Answer 1

可能这就是你想要的。

.inbox{margin:20px; cursor:pointer;}
.arrow_box {
	position: absolute;
	border: 2px solid #888;
    border-radius:5px;
    height:20px;
    width:25px;
    padding:5px 10px;
    margin-left:10px;
    text-align:center;
    margin-top:-8px;
    font-weight:bold;
    color:#888;
}
/*  to display it on hover uncomment the below css 
  .arrow_box{display:none;} 
  .inbox:hover .arrow_box{display:inline-block;}
*/

.arrow_box:after, .arrow_box:before {
	right: 100%;
	top: 50%;
	border: solid transparent;
	content: " ";
	height: 0;
	width: 0;
	position: absolute;
	pointer-events: none;
}

.arrow_box:after {
	border-color: rgba(255, 255, 255, 0);
	border-right-color: #fff;
	border-width: 8px;
	margin-top: -8px;
}
.arrow_box:before {
	border-color: rgba(136, 136, 136, 0);
	border-right-color: #888;
	border-width: 11px;
	margin-top: -11px;
}

<ul>
  <li class="inbox">Inbox
    <span class="arrow_box">25</span>
  </li>
  <li class="inbox">Spam
    <span class="arrow_box">15</span>
  </li>
</ul>