The site turns black and white

The project is nearing the end, and a few days ago it was discovered in a test, on a win7 computer ie. The site actually turned into black and white. My computer is Win8 system, with IE measurement, change various document mode is normal. Puzzling.

The reason could not be found. Changes to the browser's various settings are not effective.

Internet search information when found that very many sites in order to commemorate the earthquake or other days will be beneficial to the site into black and white. There is no such as black and white.

You should think about it now. See how to set black and white. See if my is also set up. But I think it's all about anniversaries getting black and white, and there's no such mistake as our project. I've been tinkering with it for a while.

It reminds me of the story of the shoe market. The mind is too limited.

The following are the relevant CSS code:

Filter:progid:DXImageTransform.Microsoft.BasicImage (grayscale=1);

Change the above value to 0 page color to return to normal.

The site turns black and white