我的网站头部有以下代码。我已阅读此问题,但我的 css 似乎没有 z-index。图像和类似框显示但当我单击它们时没有任何反应,或者我应该说超链接不起作用。请帮忙。谢谢
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<a href="mailto:developerfahaduddin@gmail.com"><img src="http://www.startupsandfinance.com/wp-content/uploads/2012/06/Advertise-here-728x90.png" width="728" height="90" /></a>
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<iframe src="//www.facebook.com/plugins/likebox.php?href=http%3A%2F%2Fwww.facebook.com%2FStartupAndFinance&width=290&height=62&colorscheme=light&show_faces=false&border_color&stream=false&header=true&appId=384169901601437" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:290px; height:62px;" allowTransparency="true"></iframe>
</span>
</div>
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