怎么设置行距啊。。
</head>
<body>
<div class="demo">Wishing you a song in your heart at </div>
<div class="demo">Christmas and blessings all year long. </div>
<div class="demo">Merry Christmas and happy New Year! </div>
<div class="demo">Wishing you peace </div>
<div class="demo">joy and happiness through </div>
<div class="demo">Christmas and the coming year. </div>
<div class="demo">Warm greetings and best wishes for </div>
<div class="demo">Christmas and the New Year! </div>
<div class="demo">Thinking of you and wishing you </div>
<div class="demo">A beautiful Christmas season</div>
类似这样一段代码
