1.CSS Atrributes Selectors in CSS
<!DOCTYPE html>
<html>
<head>
<style>
a[target] {
background-color: yellow;
}
a[target=_blank] {
background-color: red;
}
[class|=top] {
background: yellow;
}
</style>
</head>
<body>
<p>The links with a target attribute gets a yellow background:</p>
<a href="https://www.w3schools.com">w3schools.com</a>
<a href="http://www.disney.com" target="_blank">disney.com</a>
<a href="http://www.wikipedia.org" target="_top">wikipedia.org</a>
<p><b>Note:</b> For [<i>attribute</i>] to work in IE8 and earlier, a DOCTYPE must be declared.</p>
<br>
<h1 class="top-header">Welcome</h1>
<p class="top-text">Hello world!</p>
<p class="topcontent">Are you learning CSS?</p>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<style>
input[type="text"] {
width: 150px;
display: block;
margin-bottom: 10px;
background-color: yellow;
}
input[type="button"] {
width: 120px;
margin-left: 35px;
display: block;
}
</style>
</head>
<body>
<form name="input" action="" method="get">
Firstname:<input type="text" name="Name" value="Peter" size="20">
Lastname:<input type="text" name="Name" value="Griffin" size="20">
<input type="button" value="Example Button">
</form>
</body>
</html>