<div id="content-box">
		<p>
      <h3>box-sizing: content-box;</h3>
      <h4> Цей контейнер має розмір 400px. Ширину + 40px. padding + 20px = 480px.</h4>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
		tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
		quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
		consequat.</p>
	</div>
	<div id="border-box">
		<p>
      <h3>box-sizing: border-box;</h3>
      <h4>Цей контейнер має розмір 400px.</h4> Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
		tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
		quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
		consequat.</p>
	</div>
		div {
			transition:;
		}

		#content-box{
			width:400px;
			background:#ccc;
			padding:20px;
			border:10px solid black;
			box-sizing: content-box;
			-moz-box-sizing: content-box;
			-webkit-box-sizing: content-box;
			float:left;
			margin-right: 20px;
		}

		#border-box {
			width:400px;
			background:#ccc;
			padding:20px;
			border:10px solid black;
			box-sizing: border-box;
			-moz-box-sizing: border-box;
			-webkit-box-sizing: border-box;
			float:left;
		}

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