Hola
sheerrmaan
Prueba con esto:
<div style="width: 150px; border: 1px solid #444; overflow: hidden">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAA</div>
El borde sólo es a efecto visual, para testar.
Bye