Exercise 9 CSS ID Selectors error

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Anyone knows why my code is wrong? I had trouble with that part and can’t figure out why.

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https://www.codecademy.com/en/courses/make-a-website/lessons/closer-look-css/exercises/id-selectors?action=lesson_resume&link_content_target=interstitial_lesson

<In what way does your code behave incorrectly? Include ALL error messages.>
Did you give the #footer selector a font-size property of 0.75rem in main.css?

```

p {
font-size: 2rem

}
#footer {
font-size = 0.75rem;
}

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Ok I got it.
Haha : not =
Sorry!