Responsive Breakpoints

responsive-breakpoints.less

/* Smartphones (portrait and landscape) ----------- */
@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 480px) {
/* Styles */
}

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

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

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

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

/* iPads (portrait) ----------- */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : portrait) {
/* Styles */
}
/**********
iPad 3
**********/
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : landscape) 
and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : portrait) 
and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
/* Desktops and laptops ----------- */
@media only screen  
and (min-width : 1224px) {
/* Styles */
}

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

/* iPhone 4 ----------- */
@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 480px) 
and (orientation : landscape) 
and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 480px) 
and (orientation : portrait) 
and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

/* iPhone 6 ----------- */
@media only screen 
and (max-device-width: 375px) 
and (orientation : portrait) 
and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

@media only screen 
and (max-device-width: 667px)
and (orientation: landscape)
and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

/* iPhone 6 Plus ----------- */
@media only screen 
and (max-device-width: 414px) 
and (orientation : portrait) 
and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

@media only screen 
and (max-device-width: 736px)
and (orientation: landscape)
and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}