background only

 

This question already has an answer here:

  • How do I give text or an image a transparent background using CSS? 26 answers

    • You can do it like this: 

    background-color: rgba(0,0,0,0.7);

    this changes the background color of black opacity to 0.7 without effecting anything else

    By using this color: 

    background-color: rgba (0, 0, 0, .5); // black

    This way, it will be 50% of the real color!

    It filters alpha object and provides you with the part of the real color with some transparency effect.

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