1. Go to this page and download the library: Download izica/php-styles library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
izica / php-styles example snippets
$sStyles = (new PhpStylesInline())->opacity(0, $sContact == '')->render();
or
$sStyles = styles(true)->opacity(0, $sContact == '')->render();
or
$sStyles = styles()->inline->opacity(0, $sContact == '')->render();