Can I update SASS variables in Media Queries?

Question

Consider the following SASS code. I want to make sure that if the screen is above

1250px

then the

margin-top

should be

750px

and then it should change depending on size. However SASS does not allow me to update the variables inside the strings.

// Above 1250px

$pageTemplateMargin:750px;



// Below 1250px

@media screen and (max-width:1250px){

    $pageTemplateMargin:550px;

}



// Below 950px

@media screen and (max-width:950px){

    $pageTemplateMargin:450px;

}



@media screen and (max-width:850px){

    $pageTemplateMargin:150px;

}



@media screen and (max-width:750px){

    $pageTemplateMargin:250px;

}



// Render the correct code

.page-template {margin-top:$pageTemplateMargin}

Is there a better way for this, as it does not work and

page-template

stays at

750px

.

Thanks

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Answer 1

No, you can't.

I'd suggest using mixins to work with this:

@mixin pageTemplateMargin($px) {
    margin-top: $px
}

@media screen and (max-width:1250px) {
    .element { @include pageTemplateMargin(10px);}
}
@media screen and (max-width:1000px) {
    .element { @include pageTemplateMargin(15px);}
}
@media screen and (max-width:800px) {
    .element { @include pageTemplateMargin(20px);}
}

There's also a way of mapping through sass objects, such as:

$breakpoints: (
  1200: 10px,
  1000: 15px,
  800: 20px,
);

@media screen and (max-width:1200px) {
    .element { margin-top: map-get($breakpoints, 1200);}
}
@media screen and (max-width:1000px) {
    .element { margin-top: map-get($breakpoints, 1000);}
}
@media screen and (max-width:800px) {
    .element { margin-top: map-get($breakpoints, 800);}
}

This would allow you to globally change the margin by adjusting 1 variable.

Working codepen example

Can I update SASS variables in Media Queries?

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