html
html
1
2
3
4
5
6
7
8
9
10
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>
<p id="1" class="para">This two paragraphs have the same id and class</p>
<p id="1" class ="para">This two paragraphs have the same id and class</p>
</body>
</html>
Enter to Rename, Shift+Enter to Preview
css
css
1
2
3
body {
}
Enter to Rename, Shift+Enter to Preview
js
js
1
2
3
4
5
6
7
8
9
window.onload = function(){
var id = document.getElementById("1")
id.style.color = "yellow"
var cls = document.getElementsByClassName("para")
cls[0].style.background = "red"
cls[1].style.background = "red"
}
Enter to Rename, Shift+Enter to Preview
BROWSER
Console
Run