Media Queries - In between two widths

@Jonathan Sampson i think your solution is wrong if you use multiple @media.

You should use (min-width first):

@media screen and (min-width:400px) and (max-width:900px){
   ...
}

.class {
    display: none;
}
@media (min-width:400px) and (max-width:900px) {
    .class {
        display: block; /* just an example display property */
    }
}

You need to switch your values:

/* No less than 400px, no greater than 900px */
@media (min-width:400px) and (max-width:900px) {
    .foo {
        display:none;
    }
}​

Demo: http://jsfiddle.net/xf6gA/ (using background color, so it's easier to confirm)

just wanted to leave my .scss example here, I think its kinda best practice, especially I think if you do customization its nice to set the width only once! It is not clever to apply it everywhere, you will increase the human factor exponentially.

Im looking forward for your feedback!

// Set your parameters
$widthSmall: 768px;
$widthMedium: 992px;

// Prepare your "function"
@mixin in-between {
     @media (min-width:$widthSmall) and (max-width:$widthMedium) {
        @content;
     }
}


// Apply your "function"
main {
   @include in-between {
      //Do something between two media queries
      padding-bottom: 20px;
   }
}