Table size & youtube

Hi, i am come from Hong Kong,
hope that you can understand what i am talking about.

I am learning mobile joomla but it have some problem.
First problem, My standard website have some tables on the website. But there have some oversize table on my mobile version.How can i resize the table and fit on the mobile version.
Second problem, my website have some youtube videos but not fit size on my mobile version. it is too large in this moment.how can i have a fix size on mobile version?

Thanks!

anyone can help me?i can't keep moving on...
many thanks!

1. You can use Mobile Content plugin to make separate html for desktop and mobiles.

2. Mobile YouTube plugin allows to replace youtube video by small preview image, and open the video by click/tap on the image.