Blockquote customization

Hi!
I’m trying to change the appearance of my blockquotes, but it doesn’t matter which css I’m trying, it doesn’t change anything.
The one I have right now is:
}
blockquote {
border-left: 5px solid #e5d96b; !important
background:#ff7e70; !important
}

It doesn’t work.

Can anyone help?
Thank you!

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