Til inkludering af højopløsningsgrafik, men kun til skærme, der kan bruge dem. "Retina" er "2x":
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) ( /* Retina-specific stuff here */ )Eller andre highish-res:
/* 1.25 dpr */ @media (-webkit-min-device-pixel-ratio: 1.25), (min-resolution: 120dpi)( /* Retina-specific stuff here */ ) /* 1.3 dpr */ @media (-webkit-min-device-pixel-ratio: 1.3), (min-resolution: 124.8dpi)( /* Retina-specific stuff here */ ) /* 1.5 dpr */ @media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi)( /* Retina-specific stuff here */ )Gamle ting (brug ikke, hold for eftertiden)
@media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and ( min--moz-device-pixel-ratio: 2), only screen and ( -o-min-device-pixel-ratio: 2/1) ( /* Retina-specific stuff here */ )Dette er mere fremtidssikret ...
@media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and ( min--moz-device-pixel-ratio: 2), only screen and ( -o-min-device-pixel-ratio: 2/1), only screen and ( min-device-pixel-ratio: 2), only screen and ( min-resolution: 192dpi), only screen and ( min-resolution: 2dppx) ( /* Retina-specific stuff here */ )Bemærkninger:
- Det super underlige
min--moz-device-pixel-ratioer sandsynligvis en fejl, vil måske også lægge dem-moz-min-device-pixel-ratioi tilfælde af at de løser det, men lader det stå foran. - Her er specifikationen for opløsningsenheder.
Eksempel:
Lad os sige, at du havde tre store brudpunkter i et design. Dette design havde også en stor baggrundsgrafik, og du ville have det til at se det bedst ud på enhver skærm (nethinden eller ej) og ikke spilde nogen båndbredde. Du ville oprette 6 medieforespørgsler, en for hvert breakpoint og en for hver af disse breakpoints på nethinden. Derefter tilsidesætter du baggrundsbilledet helt ned.
@media only screen and (min-width: 320px) ( /* Small screen, non-retina */ ) @media only screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 320px), only screen and ( min--moz-device-pixel-ratio: 2) and (min-width: 320px), only screen and ( -o-min-device-pixel-ratio: 2/1) and (min-width: 320px), only screen and ( min-device-pixel-ratio: 2) and (min-width: 320px), only screen and ( min-resolution: 192dpi) and (min-width: 320px), only screen and ( min-resolution: 2dppx) and (min-width: 320px) ( /* Small screen, retina, stuff to override above media query */ ) @media only screen and (min-width: 700px) ( /* Medium screen, non-retina */ ) @media only screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 700px), only screen and ( min--moz-device-pixel-ratio: 2) and (min-width: 700px), only screen and ( -o-min-device-pixel-ratio: 2/1) and (min-width: 700px), only screen and ( min-device-pixel-ratio: 2) and (min-width: 700px), only screen and ( min-resolution: 192dpi) and (min-width: 700px), only screen and ( min-resolution: 2dppx) and (min-width: 700px) ( /* Medium screen, retina, stuff to override above media query */ ) @media only screen and (min-width: 1300px) ( /* Large screen, non-retina */ ) @media only screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 1300px), only screen and ( min--moz-device-pixel-ratio: 2) and (min-width: 1300px), only screen and ( -o-min-device-pixel-ratio: 2/1) and (min-width: 1300px), only screen and ( min-device-pixel-ratio: 2) and (min-width: 1300px), only screen and ( min-resolution: 192dpi) and (min-width: 1300px), only screen and ( min-resolution: 2dppx) and (min-width: 1300px) ( /* Large screen, retina, stuff to override above media query */ )