CODEWITHSUNDEEP
cssresponsive-designlessmedia-queries
Andre Zimpel
Andre Zimpel

Reputation: 2343

Fancy Media Queries with some LESS Magic

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!

Upvotes: 91

Views: 69973

Answers (8)

spicykimchi
spicykimchi

Reputation: 1151

And you can also combine media queries like this

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

    @media @desktop, @tablet, @ipad{ 
    
    //common styles... 
    
    }

Upvotes: 11

Sunil R.
Sunil R.

Reputation: 881

And this is what I have used for my project:

    @mobile:   ~"only screen and (min-width: 320px) and (max-width: 767px)";
    @tablet:    ~"only screen and (min-width: 768px) and (max-width: 991px)";
    @ipad:    ~"only screen and (min-width: 992px) and (max-width: 1024px)";

    @media @mobile {
      .banner{
        width: auto;
      }
    }

    @media @tablet {
      .banner{
        width: 720px;
      }
    }

  @media @ipad {
      .banner{
        width: 920px;
      }
    }

Upvotes: 0

Sanket Suthar
Sanket Suthar

Reputation: 11

@highdensity:  ~"only screen and (-webkit-min-device-pixel-ratio: 1.5)",
               ~"only screen and (min--moz-device-pixel-ratio: 1.5)",
               ~"only screen and (-o-min-device-pixel-ratio: 3/2)",
               ~"only screen and (min-device-pixel-ratio: 1.5)";

@mobile:        ~"only screen and (max-width: 750px)";
@tab:       ~"only screen and (min-width: 751px) and (max-width: 900px)";
@regular:        ~"only screen and (min-width: 901px) and (max-width: 1280px)";
@extra-large:  ~"only screen and (min-width: 1281px)";

Upvotes: 0

SunnyRed
SunnyRed

Reputation: 3545

+1 for Nguyen and Yancey - and one more addition.

If you want explicit definition of the widths, you can accomplish that with string interpolation and variables for your breakpoints. Here for example with those of bootstrap - the strict rules are to prevent definition overlapping.

@screen-xs-min:     480px;
@screen-sm-min:     768px;
@screen-md-min:     992px;
@screen-lg-min:     1200px;

@screen-xs-max:     (@screen-sm-min - 1);
@screen-sm-max:     (@screen-md-min - 1);
@screen-md-max:     (@screen-lg-min - 1);

@phone:             ~"only screen and (max-width: @{screen-xs-min})";
@phone-strict:      ~"only screen and (min-width: @{screen-xs-min}) and (max-width: @{screen-xs-max})";
@tablet:            ~"only screen and (min-width: @{screen-sm-min})";
@tablet-strict:     ~"only screen and (min-width: @{screen-sm-min}) and (max-width: @{screen-sm-max})";
@desktop:           ~"only screen and (min-width: @{screen-md-min})";
@desktop-strict:    ~"only screen and (min-width: @{screen-md-min}) and (max-width: @{screen-md-max})";
@large:             ~"only screen and (min-width: @{screen-lg-min})";

footer{
    width: 100%;
    @media @tablet {
        width: 768px;
    }
    @media @desktop {
        width: 940px;
    }
}

Upvotes: 48

Matt W
Matt W

Reputation: 4133

We use a setup like this:

@vp_desktop:    801px;
@vp_tablet:     800px;
@vp_mobile:     400px;

.OnDesktop(@rules) { @media screen and (min-width:@vp_desktop){ @rules(); } };
.OnTablet(@rules) { @media screen and (max-width:@vp_tablet){ @rules(); } };
.OnMobile(@rules) { @media screen and (max-width:@vp_mobile){ @rules(); } };

You only need to set variables, the mixins handle the rest so it's very easy to maintain yet still flexible:

div {
  display: inline-block;
  .OnTablet({
    display: block;
  });
}

It is worth mentioning that while this technique is very easy, if used badly your CSS output will be full of media queries. I try to limit my media queries to 1 per-breakpoint, per-file. Where a file would be header.less or search.less.

N.B. This method probably won't compile unless you're using the javascript compiler.

Upvotes: 7

Atul Gupta
Atul Gupta

Reputation: 755

I am using these mixins & variables 

.max(@max; @rules){@media only screen and (max-width: (@max - 1)){@rules();}}
.min(@min; @rules){@media only screen and (min-width: @min){@rules();}}
.bw(@min; @max; @rules){@media only screen and (min-width: @min) and (max-width: (@max - 1)){@rules();}}

@pad: 480px;
@tab: 800px;
@desktop: 992px;
@hd: 1200px;

So this 

footer{
    width: 100%;
    .bw(@tab,@desktop,{
        width: 768px;
    });
    .min(@desktop,{
        width: 940px;
    });
}

becomes 

footer {
  width: 100%;
}
@media only screen and (min-width: 800px) and (max-width: 991px) {
  footer {
    width: 768px;
  }
}
@media only screen and (min-width: 992px) {
  footer {
    width: 940px;
  }
}

Upvotes: 4

Joseph Yancey
Joseph Yancey

Reputation: 1498

I completely agree with Hai Nguyen's answer (which has been accepted) but you can clean it up a bit more by doing something like this:

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

footer{
  width: 100%;
  @media @tablet {
    width: 768px;
  }
  @media @desktop {
    width: 940px;
  }
}

It's essentially the same thing but lets you nest your media queries inside of the original selector. It keeps all css for a specific element together and makes your styles much more modular (vs the split breakpoint approach).

Upvotes: 123

Hai Nguyen
Hai Nguyen

Reputation: 4059

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. :)

Upvotes: 249

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