Fix the Submit button bug on iphone

From: http://www.w3cplus.com/node/271

The problem here is that the Safari parsing input[type= "Submit" and the input[type= "Reset" button on the iphone will be rendered in the default UI of the Apple browser, so that the image I have just now appears, We explicitly set the fillet value of the button in the style, but it doesn't work on the iphone safari. In order for him to take effect, it is necessary to explicitly nominate the style:

1 . Form-actions input {2        ...     3        -webkit-appearance: none;     4 }

Fix the Submit button bug on iphone