[j0hnik]

<style>
	.content{
		width: 800px;
		margin: 0 auto;
		text-align: center;
		border: 1px solid red;
	}
</style>

<div class="content">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sed, voluptas, repellendus. 
Minima repellat deserunt veritatis, provident a illo labore numquam nam nesciunt cumque. 
Perspiciatis nihil, repudiandae blanditiis molestias consequatur quia.500</div>

вам хоть базовые знания по css надо приобрести