Issue 8: Change the color when the button is clicked on the phone side (fix iOS does not display the background)

Css:

. sval:active,. sval:focus{     

On the touchscreen,: hover and: Active is not a direct function, here to use a small hack, in the body of the HTML (or the target element) to add ontouchstart= "", to evil to entice WebView to listen to the touch event.

Html:

<ontouchstart= "">

Or: JavaScript:

<script  type= "Text/javascript" >    // corresponding Apple phone touch screen (: active:focus)function  () {}); </script>

Issue 8: Change the color when the button is clicked on the phone side (fix iOS does not display the background)