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<style>
.ex1 {
font-size: 16px;
}
.ex2 {
font-size: large;
}
.ex3 {
font-size: 125%;
}
</style>
</head>
<body>
<h1>The font-size Property</h1>
<div class="ex1">Webtutor.dev</div>
<div class="ex2">Webtutor.dev</div>
<div class="ex3">Webtutor.dev</div>
</body>
</html>