estudo-javascript/ex05.html at master · piinheiroflavia/estudo-javascript · GitHub

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<!DOCTYPE html>
<html lang="pt-BR">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body{
            background-color: rgb(68,125, 199);
            color: #fff;
            font: normal 18pt Arial;
        }
    </style>

</head>
<body>
    <h1>Iniciando estudo com dom</h1>
    <p>Aqui vai o resultado </p>
    <p>Aprendendo a usar o <strong> DOM </strong> em Javascrit.</p>
    <div id= 'msg'> Clique em mim </div>

    <script>
        var p1 = window.document.getElementsByTagName ('p') [1]
        window.document.write('Está escrito assim: ' + p1.innerHTML)

      /*  var d = window.document.getElementsById('msg')
        d.innerText = 'ola mundo'
        d.style.background= 'blue'*/

        /*var d = window.document.getElementsByClass('msg')
        d.innerText = 'ola mundo'
        d.style.background= 'blue'*/

        /*var d = window.document.getElementsByName('msg') [0]
        d.innerText = 'ola mundo'
        d.style.background= 'blue'*/

        var d = window.document.querySelector('div#msg')
        d.innerText = 'ola mundo'
        d.style.background= 'blue'
    </script>
</body>
</html>