I'm pretty much new to Bootstrap 4 and Sass\SCSS,I wanted to use the new grid and style the rest of my website on my own using SCSS, so I downloaded bootstrap source, compiled bootstrap-grid.scss (which is only the grid plus some variables and mixins), now the question that pops in my mind is : How do I use bootstrap's media queries screen sizes with my own style? Is there a particular mixin/way to call the breakpoints? Or since I'm using the grid only I have to configure media queries myself?
My idea was that there probably would be a mixin that allows me to do for example :
.my_class {
color: red;
+mobile {
color: blue;
}
}
Does bootstrap have something like this? I have to do it on my own? How do you proceed when working with the grid only?