$(".demo_5 button").click(function() {
swal({
title: "Good!",
text: '自定义<span style="color:red">图片</span>、<a href="#">HTML内容</a>。<br/>5秒后自动关闭。',
imageUrl: "images/thumbs-up.jpg",
html: true,
timer: 5000,
showConfirmButton: false
});
});