A way to skip the rest of the values in the array by just not adding them to the corresponding media at all

Hello there,
I'm trying to add some responsive behavior from a parent component to some of its children. I have a situation where the first media query is a match, but any other, I want to skip adding any values to the width property in this case. This is because the children's component receives its width dynamically.
I have:
mq(
Div:first-oftype{
Width: [100%, and the rest here I want unchanged]
Is that possible?

,,}
)