Media Queries for standard devices

@media only screen
 and (min-device-width : 320px)
 and (max-device-width : 480px) {

}

/* Smartphones (landscape) ----------- */
 @media only screen
 and (min-width : 321px) {

}

/* Smartphones (portrait) ----------- */
 @media only screen
 and (max-width : 320px) {

}

/* iPads (portrait and landscape) ----------- */
 @media only screen
 and (min-device-width : 768px)
 and (max-device-width : 1024px) {

}

/* iPads (landscape) ----------- */
 @media only screen
 and (min-device-width : 768px)
 and (max-device-width : 1024px)
 and (orientation : landscape) {

}

/* iPads (portrait) ----------- */
 @media only screen
 and (min-device-width : 768px)
 and (max-device-width : 1024px)
 and (orientation : portrait) {

}

/* iPad 3 (portrait and landscape) ----------- */
 @media only screen
 and (min-device-width : 768px)
 and (max-device-width : 1024px)
 and (-webkit-min-device-pixel-ratio : 2),
 only screen
 and (min-device-width : 768px)
 and (max-device-width : 1024px)
 and (min-resolution: 192dpi) {

}

/* Desktops and laptops ----------- */
 @media only screen
 and (min-width : 1224px) {

}

/* Large screens ----------- */
 @media only screen
 and (min-width : 1824px) {

}

/* Retina displays ----------- */
 @media only screen
 and (-webkit-min-device-pixel-ratio : 2),
 only screen
 and (min-resolution: 192dpi) {

}/* CSS Document */