HTML代码:
<div id="wrapper">
<img src="http://placehold.it/300x200" class="hover" />
<p class="text">text</p>
</div>
CSS代码:
#wrapper .text {
position:relative
bottom:30px
left:0px
visibility:hidden
}
#wrapper:hover .text {
visibility:visible
}
window.onload = function(){function closeAlert()
{
document.getElementById("login_alert").style.display="none"
}
setTimeOut(closeAlert,5000)//5s后执行
}