css - Fancy Media Queries with some LESS Magic

Question

It would be nice to wrap css-styles for different resolutions within some css-classes using less.

I'd like to do something like:

footer {
  width: 100%;
}

.tablet {
  footer {
    width: 768px;
  }
}

.desktop {
  footer {
    width: 940px;
  }
}

At the end something like this should be the result:

footer {
  width: 100%;
}

@media screen and (min-width: 768px) {
  footer {
    width: 768px;
  }
}

@media screen and (min-width: 992px) {
  footer {
    width: 940px;
  }
}

.tablet could look somehow like this:

@media screen and (min-width: 768px) {
  .tablet {

  }
}

Hope somebody has a nice idea!

Answer 1

Here is what I've done in my projects:

@desktop:   ~"only screen and (min-width: 960px) and (max-width: 1199px)";
@tablet:    ~"only screen and (min-width: 720px) and (max-width: 959px)";

@media @desktop {
  footer {
    width: 940px;
  }
}

@media @tablet {
  footer {
    width: 768px;
  }
}

This allows you to only define your media queries once and you can use it throughout your less files. Also a little easier to read. :)