Peng Zhang on September 1st, 2010

I have a site that is developed on HTTP, and later moved onto HTTPS. And it was throwing security warnings “This page contains both secure and nonsecure items”. Took me about an hour and a half to nail the cause down. Because all the conventional weapons I use were not able to find anything wrong. [...]

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Peng Zhang on March 17th, 2010

I found out the hard way that when you use divs to lay out part of a page instead of tables, if there is no width and height attributes in the IMG tag, in IE 7, the right most div that contains an IMG tag will wrap around to the next row. The same page [...]

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Peng Zhang on November 9th, 2009

The home page of EKS started to throw errors like “Object not Found” in Internet Explorer 6. Upon closer inspection, I suspect that it was because the javascript functions that are being called appear to be still undefined to IE. This occurs only in IE though – Firefox does not have this problem. I still [...]

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Two of my WordPress-powered members-only sites that run on HTTPS were throwing alerts on every page warning of non-secure content in a SSL secured page. At first, I thought it was caused by the clicky plugin not using the proper tracking code for secure sites. But that theory was confirmed false when the problem persisted [...]

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Peng Zhang on March 23rd, 2009

If the <a> tag does not contain a href attribute, the :hover CSS pseudo class does not work in IE 6. The same <a> tag without the href attribute would work just fine in Firefox. I found out about this after hours of frustration. And thanks to one post out of so many found by [...]

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Peng Zhang on March 20th, 2009

The idea of using CSS Sprites to implement button states can easily go wrong as I found out. And I spent quite some time trying to figure out the problem. Here is what I found: in the :hover CSS declaration, one has to repeat the background-image attribute even though it is the same as what’s [...]

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