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Forum POSTING BASICS: (Help us help you!)
Without knowing what you are talking about (I have no idea what the Solo template or Cargo Collective 2 are, and there is no link to a video), it sounds to me like you have not learned to use the tools your have chosen for your site. We are glad to help you with specific problems, but it would not be very fruitful for us to learn your tools for you.
Have you taken a basic HTML and CSS course? If not, I highly recommend it.
Can you post a link to your test site?