Add css element to modify page, and display canvas only

[undefinedzain]

how to do it ?, here is my code.

$url = 'https://flightaware.com/live/flight/BTK7541'; $client = new Client();

        $crawler = $client->request('GET',$url);

      // here i want to add css styling that hide all elements except canvas containg plane tracking.
        $crawler->addContent('<style type="text/css">div:not(.flightPageStaticMap) {display: none;}</style>');

        $crawler->filter('.flightPageStaticMap')->each(function ($node) {
            // display canvas (map) only here
        });