in WordPress / Forms
High Resolution: Yes, Compatible Browsers: IE7, IE8, IE9, IE10, IE11, Firefox, Safari, Opera, Chrome, Edge, Software Version: WordPress 4.9.x, WordPress 4.8.x, WordPress 4.7.x, WordPress 4.6.1, WordPress 4.6, WordPress 4.5.x, WordPress 4.5.2, WordPress 4.5.1, WordPress 4.5

in PHP Scripts / Forms
High Resolution: No, Compatible Browsers: IE7, IE8, IE9, IE10, IE11, Firefox, Safari, Opera, Chrome, Edge, Software Version: PHP 7.x, PHP 5.x, PHP 5.0 - 5.2, PHP 5.3, PHP 5.4, PHP 5.5, PHP 5.6