Tittle or footer BackGround Black

Hello sir, please Give solution for that,

  1. How or what i do for change top footer BackGround colour Black and text colour white?

  2. Why half post tittle show on my website what i do to show full post tittle?

  3. How i show on my website next previous icons or buttons on home page, in posts, Pages?

Website is https://tricksbyguptaji.com

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