Quick-Question: how can this be achieved? (see image below)

Setting td width booth in plain html and with css had no effect.
The td width CAN vary but only with the same width for each row.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Use three separate
<table>blocks, each with a single row having three columns of varying widths.