center page css

CSS
.class {
	text-align: center;
}    div.a {
  text-align: center;
}


    div.b {
  text-align: left;
}


    div.c {
  text-align: right;
}

div.c {
  text-align: 
    justify;
}    <style>
.content {
  max-width: 500px;
  
  margin: auto;
}
</style>

  <body>

<div class="content">
  <!-- Page content -->
</div>

</body>
Source

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