@mixin not working in scss?

Question

Sass

I can't figure out why the variables I pass in parentheses don't affect the size of the .button; From the mixin I get only the color

@mixin button-color ($height, $width) {

    @if (($height < $width) and ($width >= 35px)) {
        background-color: blue;    
    } @else {
        background-color: green;
    }
}

.button {
    @include button-color(100px, 200px); // работает только логика
}

Answer 1

Unfortunately, the comments could not answer
Below is the answer

@mixin button-color ($height, $width) {

    height: $height; // вот в чем соль
    width: $width;  // вот в чем соль

    @if (($height < $width) and ($width >= 35px)) {
        background-color: blue;    
    } @else {
        background-color: green;
    }
}

.button {
    @include button-color(100px, 200px); // работает только логика
}