I have a table with 2 columns and I have put display:block or float: left on the td. I want to wrap TD to full width on mobile. but It appears display:block and float left doesn't work on Android 4.4 Native Email. Android 4.2 Native Email is working very well.

Is anyone having problems with media queries after updating to Kit Kat? display:block doesn't seem to be working anymore?

If anyone has any tips on sorting this out, it would be greatly appreciated!

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
    <meta name="format-detection" content="telephone=no"/>

    <title></title>
    <style type="text/css">
        @media only screen and (max-device-width:740px) {
            td[class="float"] { display:block !important;float: left !important; width: 100% !important;} 
            td[class="float-red"] { display:block !important;float: left !important; width: 100% !important;background-color:yellow !important; }
        }

    </style>
</head>
<body>

<table cellpadding="0" cellspacing="0" border="0" id="backgroundTable" bgcolor="#ffffff">
    <tr>
        <td valign="top" align="center">
            <table width="600" cellpadding="0" cellspacing="0" border="0" align="center" class="outer">
                <tr>
                    <td valign="top" align="center">
                        <table width="600" cellpadding="0" cellspacing="0" border="0" align="center" class="inner">
                            <tr>
                                <td width="300" bgcolor="red" class="float-red">Testing  Testing</td>
                                <td width="300" bgcolor="blue" class="float">Testing  Testing</td>
                            </tr>
                        </table>
                    </td>
                </tr>
            </table>
        </td>
    </tr>
</table>
</body>
</html>