css media query resolution dpi versus width versus device-width -


when comes using media queries, see max-width , max-device-width used lot target "small screen" devices, or smartphones, why not use media query resolution?

for example, @media screen , (min-resolution: 230dpi) allows me write css target smartphones, such galaxy s glide sgh i927r, has 480 x 800 pixels, 4 inches (~233 ppi pixel density)

conversely, have use @media screen , (max-device-width: 480px) , (orientation: portrait) plus @media screen , (max-device-width: 800px) , (orientation: landscape).

it seems min-resolution save me time. have read several articles , blogs, not see advocating resolution.

there must obvious point missing - not professional web designer - "wrong" approach of using resolution? makes width or device-width better target "small screens."

my favorite site far on width vs device-width has been: http://www.javascriptkit.com/dhtmltutors/cssmediaqueries.shtml

maybe reason had use max-device-width of 800px, seemed "excessive" smartphones me because did not use meta tag viewport. read in article above on page 3 following:

"it means our css media queries match dimensions of "zoomed out" device's, , not actual (ie: 980px device-width on iphone instead of 320px). whenever you're optimizing webpage mobile devices, first step define particular meta tag on page alter/ disable "zoom in" behaviour of mobile browsers..."

perhaps after defining viewport, max-device-width make more sense using resolution in media queries?

chris coyier css-tricks.com , jamie bicknell of rentedsmile web design put great article on css-tricks website.

i summarize main points , post link article @ bottom.

the popular analytics software in world google analytics why of concerned resolution. unfortunately not account browser window size item account when many of using 27" screens, multiple screens, 40+ devices, , frankly, percentage of people ever use full window? know don't.

chris coyier points out ~61% of users view within 200px of full screen meaning if 'pixel-perfect' in eyes of consumer -- not. website broken. (an estimated 0.85% using full screen)

this means screen resolution totally irrelevant cause our end-users.

see full article here complete breakdown , illustration-rich analysis

http://css-tricks.com/screen-resolution-notequalto-browser-window/


Comments

Post a Comment

Popular posts from this blog

get url and add instance to a model with prefilled foreign key :django admin -

Image
i have page in each contest shown in row. each row contains contest id , link other model names have foreign key contest. news model: class news(models.model): title = models.charfield(max_length=50, null=true) description = models.textfield() time = models.timefield( default= datetime.datetime.now().time()) contest = models.foreignkey(contest) i want use admin adding , changing these models. want when user clicks on 'news' has foreign key contest id=1, shows list of news value foreign key. use {% instance in instances %} <tr class="{% cycle 'row1' 'row2' %}"> <td>{{ instance.title }}</td> <td>{{ instance.starttime }}</td> <td>{{ instance.timespan }}</td> <td>{{ instance.date }}</td> <td><a href="/adm...
Read more

css - Make div keyboard-scrollable in jQuery Mobile? -

from can tell, although jquery-mobile-powered pages can contain divs overflow set scroll or auto, , these divs can scrolled one-screen bar or mouse wheel, cannot scrolled using arrow keys, page-up/page-down, or home/end. instead, official "page" div (with data-role="page") absorbs input. perhaps other divs can't acquire focus, i'm not sure. is there way around this? edit: jsfiddle of simple example: https://jsfiddle.net/qogz0shx/ <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js"> </script> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"/> <style> #outer { overflow:scroll; height: 50vh; width: 50vw; } #inner { height: 500vh; width: 500vw; } ...
Read more

ruby on rails - Seeing duplicate requests handled with Unicorn -

recently upgraded our ec2 instances c3.large in order boost more unicorn workers handle increased traffic our site. (6xworkers per machine - 2 ec2 instances). when did this, started seeing duplicate records being created! looks somehow, maybe 2 unicorn workers attempting process same request? in nginx logs see 1 [post] request particular rails controller - yet 2 records being created in database. i'm hitting kind of race condition issue - have no idea how debug this. doesn't happen time, when it's frustrating well. noticed 2 database records within 5 seconds of each other. (and yes disable button when user clicks submit button). unicorn 4.8.2 ruby 1.9.3 rails 3.2.14 any great! thanks! although may not fix problem, upgrade ruby 2.0.0. there blog mentioning idea upgrade ruby 2.0.0 if using unicorn. for example: https://www.digitalocean.com/community/articles/how-to-optimize-unicorn-workers-in-a-ruby-on-rails-app specifically: if using ruby 1.9, ...
Read more