Semantic UI friendly media queries

mediaqueries.css

/* Mobile */
@media only screen and (max-width: 767px) {
  [class*="mobile hidden"],
  [class*="tablet only"]:not(.mobile),
  [class*="computer only"]:not(.mobile),
  [class*="large screen only"]:not(.mobile),
  [class*="widescreen only"]:not(.mobile),
  [class*="or lower hidden"] {
    display: none !important;
  }
}

/* Tablet / iPad Portrait */
@media only screen and (min-width: 768px) and (max-width: 991px) {
  [class*="mobile only"]:not(.tablet),
  [class*="tablet hidden"],
  [class*="computer only"]:not(.tablet),
  [class*="large screen only"]:not(.tablet),
  [class*="widescreen only"]:not(.tablet),
  [class*="or lower hidden"]:not(.mobile) {
    display: none !important;
  }
}

/* Computer / Desktop / iPad Landscape */
@media only screen and (min-width: 992px) and (max-width: 1199px) {
  [class*="mobile only"]:not(.computer),
  [class*="tablet only"]:not(.computer),
  [class*="computer hidden"],
  [class*="large screen only"]:not(.computer),
  [class*="widescreen only"]:not(.computer),
  [class*="or lower hidden"]:not(.tablet):not(.mobile) {
    display: none !important;
  }
}

/* Large Monitor */
@media only screen and (min-width: 1200px) and (max-width: 1919px) {
  [class*="mobile only"]:not([class*="large screen"]),
  [class*="tablet only"]:not([class*="large screen"]),
  [class*="computer only"]:not([class*="large screen"]),
  [class*="large screen hidden"],
  [class*="widescreen only"]:not([class*="large screen"]),
  [class*="or lower hidden"]:not(.computer):not(.tablet):not(.mobile) {
    display: none !important;
  }
}

/* Widescreen Monitor */
@media only screen and (min-width: 1920px) {
  [class*="mobile only"]:not([class*="widescreen"]),
  [class*="tablet only"]:not([class*="widescreen"]),
  [class*="computer only"]:not([class*="widescreen"]),
  [class*="large screen only"]:not([class*="widescreen"]),
  [class*="widescreen hidden"],
  [class*="widescreen or lower hidden"] {
    display: none !important;
  }
}

You could have generated all this automatically with SCSS in about 12 lines of code

thanks