Con float en css, por ejemplo:
Código HTML:
<div style="float:left; margin-left:2px; border:1px solid #ccc">
adasdas d sd as ds d sd ad sad as d asd sd sa das d sadasd sdsadsad a dasd
</div>
<div style="float:left; margin-left:2px; border:1px solid #ccc">
adasdas d sd as ds d sd ad sad as d asd sd sa das d sadasd sdsadsad a dasd
</div>
<div style="float:left; margin-left:2px; border:1px solid #ccc">
adasdas d sd as ds d sd ad sad as d asd sd sa das d sadasd sdsadsad a dasd
</div>