With the HTML5 (later used H5 representative) label more and more widely used, IE does not recognize the problem of H5 tags people are very annoying.
In the browser such as Firefox and Chrome, encounter the non-recognized tags, just give a display:block attribute, you can make this element a div-like element, but to IE is very disgusting, it does not know is not know, you in the HTML and CSS to add what it does not talk to you.
There's nothing wrong with the almighty program Ape can not solve, in fact, to let IE recognize a custom label (ie think H5 label is unfamiliar, illegal)
Html5--html5shiv.js plugin Download
Https://github.com/aFarkas/html5shiv/releases
Css3--selectivizr-min.js Plugin Download
http://selectivizr.com/
The above two plugins are often used in the project more. In the HTML page
Allow IE9 to support HTML5,CSS3 plugins in the following versions of the browser