Very confused about responsive CSS media queries -


i don't expect 1 size fits answer here, i've been reading blog after blog on "the best way design site make responsive" , i'm more confused when started.

the overwhelming opinion seems "don't use device specific mq's, use breakpoints instead".

i totally , makes perfect sense, in real world doesn't work.

for example.

design site looks great @ max-width 800px on desktop , well. view on small screen device , looks great. view site on iphone 6 , big , bold @ 800px on desktop tiny due increased resolution of retina devices.

surely way address using device specific mq's - screams isn't idea.

i'm confused now.

am missing part of story here somewhere?

i can't stomach blog right head spinning, thought i'd ask pro's ;)

any pointers addressing specific (retina device) issue appreciated.

this broad topic, in big words, can avoid changing layout hard-pixel relative meassures (em, rem, vh/vw, etc).

if define in html tag:

 html {     font-size: 62.5%;  }

then can use em/rem meassures , can make this:

 @media , (max-width: 80rem) /* mq 800 pixels no matter pixel ratio */

if define font-size example in pixels, pixel ratio of 3, font-size 1/3 of specified. if make in em same in devices.

example in hard-pixels:

div {     width: 300px; }
  • device pixel ratio: 1 > result: 300px;
  • device pixel ratio: 2 > result: 150px;
  • device pixel ratio: 3 > result: 100px;

example in relative measures

div {      width: 30rem; }
  • device pixel ratio: 1 > result: 300px;
  • device pixel ratio: 2 > result: 300px;
  • device pixel ratio: 3 > result: 300px;

good luck

edit

in comments, can see more explanation 62.5% defined font-size , why it's great feature.


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