css - 如何垂直放置字体超棒的箭头图标中心

Question

.btnup, .btndown{
    	display:inline-block;
    	font-size:20px;
    	background:#ddd;
    	border-radius:5px;
    	cursor:pointer;
    	width:25px;
    	line-height:30px;
    	height:30px;
    	color:#999;
    	text-align:center;
    	margin:0 5px;
    }

    <link href="https://use.fontawesome.com/releases/v5.3.1/css/all.css" rel="stylesheet"/>

    <i class="fas fa-angle-up btnup" id='btnup'></i>
    <i class="fas fa-angle-down btndown" id='btndown'></i>

如何让箭头垂直居中？

Answer 1

您可以添加顶部和底部填充(并从 height 设置中减去这些值):

.btnup, .btndown{
    	display:inline-block;
    	font-size:20px;
    	background:#ddd;
    	border-radius:5px;
    	cursor:pointer;
    	width:25px;
    	line-height:30px;
    	height:20px;
    	color:#999;
    	text-align:center;
    	margin:0 5px;
      padding: 5px 0 5px 0;
    }

<link href="https://use.fontawesome.com/releases/v5.3.1/css/all.css" rel="stylesheet"/>

    <i class="fas fa-angle-up btnup" id='btnup'></i>
    <i class="fas fa-angle-down btndown" id='btndown'></i>