Why my sass mixins fails to work

Question

I make a sass mixin to do media query stuff, and I just cannot make it to work in my project. Even when I put 'display:none;', it still shows, which means that the media query i coded is not working. Am I missing something?

Actually when I change the @mixin mq($media) to @media only screen and (min-width: 0) and (max-width: 200px), it did work as expected. Besides, i also change $wide-desktop:em-calc(1500); to $wide-desktop:1500, and it's still not working as expected.

Thanks in advance.

My code is as follows:

$s:em-calc(380);
$ls:em-calc(492);
$tablet:em-calc(584);
$wide-tablet:em-calc(961);
$desktop:em-calc(1025);
$wide-desktop:em-calc(1500);
$tabletUp: em-calc(900);

@mixin mq($media) {
  @if $media == s {
    @media only screen and (min-width: $s) and (max-width: $ls - 1) { @content; }
  }
  @else if $media == ls {
    @media only screen and (min-width: $ls) and (max-width: $tablet - 1) { @content; }
  }
  @else if $media == tablet {
    @media only screen and (min-width: $tablet) and (max-width: $wide-tablet - 1) { @content; }
  }
  @else if $media == wide-tablet {
    @media only screen and (min-width: $wide-tablet) and (max-width: $desktop - 1) { @content; }
  }  
  @else if $media == desktop {
    @media only screen and (min-width: $desktop) and (max-width: $wide-desktop - 1) { @content; }
  }
  @else if $media == wide-desktop {
    @media only screen and (min-width: $wide-desktop) { @content; }
  }

  @else if $media == tabletUp {
    @media only screen and (min-width: 0) and (max-width: $wide-desktop - 1) { @content; }
  }

}

@include mq(s){

        #header2{
              height:95%!important;
              #innerTop{margin-top:15%;display:none;}
        }

        .center section#move{height:5%!important;}
        div.center{
              top:95%!important;
        }

        #innerTop{

            margin-top:22%!important;
            h1{
               font-weight: 800;font-family:sans-serif;font-size: 3.4em!important;line-height: 63px;margin-top: 0;margin-left:0.5em;
               margin-bottom: 20px;color: white;max-width:70%;line-height:1.2em;
               span.h11{display:none;font-size:0.5em;}
           }
           p{
             font-size:1.1em;margin-left:1.5em;max-width:80%;margin-top:2em;margin-bottom:-1em; color:#e3e3e3;
             }

        }

}

Answer 1

Problem is related to the missing em-calc function which generated your media query like this

@media only screen and (min-width: em-calc(380)) and (max-width: em-calc(492) (-1))

Be sure that the function exists, or use directly the em values (based on 16px base font size)

$s: 23.750em;
...