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<div style="-webkit-column-count:2; -webkit-column-rule:2px solid grey; -webkit-column-fill:auto; column-count:2; column-rule:2px solid grey; column-fill:auto; width:300px; height:750px; border:5px solid black; padding:5px;">
<div style="width:250px"></div>
<div style="display:inline-block; border:2px solid green">
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
All of this text should be in the second column.<br>
</div>

</div>