/* PC端不显示 */
.hidden-pc{display: none;}
@media (max-width: 768px){.hidden-pc{display: block !important;}
/* mobi端不显示 */
.hidden-mobi{display: block;}
@media (max-width: 768px){.hidden-mobi{display: none;}
/*
html代码
<link href="public/css/hidden.css" rel="stylesheet" type="text/css">
<div class="hidden-mobi">   </div>
*/