<style>

  .content {

    border : 1px solid blue;

  }

</style>

<div class="content">

    content1

</div>

<div class="content">

    content2

</div>

<script src="//code.jquery.com/jquery-3.1.0.min.js"></script>

<script>

    $('.content').before('<div>before</div>');

    $('.content').after('<div>after</div>');

    $('.content').prepend('<div>prepend</div>');

    $('.content').append('<div>append</div>');

</script>