Two solutions for cell width:
1. Omit words:
<td style="width:60px;"><div style="width:60px;overflow:hidden; text-overflow:ellipsis;" title="{!display value}">{!display value}</td>
2. Word wrap:
<td style="width:60px;"><p style="white-space:pre-wrap;word-break:break-all;word-wrap:break-word;">{!display value}</p>
