How to make text line break in a container using html5 and css3

I have software that generates html5 code by way of a script.

I don't know how to set up my template to keep text from running past
the end of the container.

Please show me what I have to add to my templater:

<div align="center">
                  <table width="450">
                  <td style="text-align:left; vertical-align: top; font-size: 14;"><b>Full Screen Dynamo best yetxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx<br>
The line breaks here were created by entering return key
The html which is producing the improper results is attached

Thanks in advance,
TechIsaacIT Contracting Asked:
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Bernard S.CTOCommented:
B-) can you post the html code?

What do you mean exactly by The line breaks here were created by entering return key?

Remember that consecutives "white spaces" are rendered in html as a single space. White space= spaces, tabs, returns, etc.

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TechIsaacIT Contracting Author Commented:
I solved the problem by using:

word-wrap: break-word;

Thanks for you r attention
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