Html5 removing borders

  html5, question

In this case, the yellow border will only appear under Google’s browser, and the yellow border will not appear on IE and Firefox’s browser.
<div id=”yonghu2″>
< input id = “name” type = “text” id = “txt” size = “25” name = “user” value = “user name” style=”border:0; ” >
It’s my code. Please tell me how to change it later.

    outline: none;