How to create a Popup with CSS and Javascript
Popups suck.
The good thing is you don’t see that many of them any more. That’s because browsers recognize that they suck and are most likely spam or ads and so they block the popups. The old way of creating a popup was to force open a new browser window over the current browser window. So this is what browsers block. But what if you actually have a need to use a popup window for something useful and not spammy? This happened to me the other day. A client wanted a popup window on their homepage to wish everyone a Merry Christmas.
Knowing I couldn’t use the old popup method, I went searching. I knew it’d be easy enough to use CSS to put a floating div over the content of the site, which creates a popup effect. The problem was how do you close the popup once it’s open? Javascript would be needed for this. Check out the demo I setup which shows how the CSS popup can be set to open on pageload or by clicking on a link; and then how Javascript allows you to have a “close” button that shuts or hides the popup. Then continue reading for the code and downloadable files.
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