css - What is the difference among col-lg-*, col-md-* and col-sm-* in Bootstrap? -

-



what difference among col-lg-* , col-md-* , col-sm-* in twitter bootstrap 3?

the bootstrap 3 grid comes in 4 tiers (or "breakpoints")...

  • extra small (for smartphones .col-xs-*)
  • small (for tablets .col-sm-*)
  • medium (for laptops .col-md-*)
  • large (for laptops/desktops .col-lg-*).

these grid sizes enable control grid behavior on different widths. different tiers controlled css media queries.

so in bootstrap's 12-column grid...

col-sm-3 3 of 12 columns wide (25%) on typical small device width (> 768 pixels)

col-md-3 3 of 12 columns wide (25%) on typical medium device width (> 992 pixels)

the smallest tier set (xs, sm or md) defines size larger screen widths. so, same size column on tiers, set width smallest viewport...

<div class="col-lg-3 col-md-3 col-sm-3">..</div> same as,

<div class="col-sm-3">..</div>

because col-sm-3 means 3 units on sm , up, unless overridden larger tier.

xs(default) > overridden sm > overridden md > overridden lg

combine classes use change column widths on different grid sizes. creates responsive layout.

<div class="col-md-3 col-sm-6">..</div>

the sm, md , lg grids "stack" vertically on screens/viewports less 768 pixels. xs grid fits in. columns use col-xs-* classes not stack vertically, , continue scale down on smallest screens.

resize browser using demo , you'll see grid scaling effects.

update bootstrap 4 there new -xl- size, see this demo. -xs- infix has been removed, smallest columns col-1, col-2.. col-12, etc..

bootstrap 4 beta grid demo

also, article explains more bootstrap grid





wiki

Comments

Post a Comment

Popular posts from this blog

Asterisk AGI Python Script to Dialplan does not work -

-
i'm stuck project have check database of sip extension incoming caller id , dial sip extension. below receive when run script on asterisk cli. -- registered sip '9125' @ 192.168.1.102:50142 > saved useragent "zoiper rv2.8.40" peer 9125 [2017-08-22 13:53:33] notice[5095]: chan_sip.c:24558 handle_response_peerpoke: peer '9125' reachable. (17ms / 2000ms) == using sip rtp tos bits 184 == using sip rtp cos mark 5 -- executing [0112617769@from-trunk:1] answer("sip/obitrunk1-0000000d", "") in new stack > 0x1ca50d0 -- probation passed - setting rtp source address 192.168.1.98:16834 -- executing [0112617769@from-trunk:2] agi("sip/obitrunk1-0000000d", "test.py") in new stack -- launched agi script /var/lib/asterisk/agi-bin/test.py args: ['/var/lib/asterisk/agi-bin/test.py'] env line: agi_request: test.py env line: agi_channel: sip/obitrunk1-0000000d env line: agi_language: en env line: a
Read more

python - Read npy file directly from S3 StreamingBody -

-
i have many .npy (numpy) , .json files saved in s3, need download , load these files. for json files downloading files , loading dictionary using following code: obj = s3.object(bucket, key) response = obj.get() body = response['body'].read().decode('utf-8') data = json.loads(body) that way avoid writing .json file disk , reading it. now want same .npy files, equivalent? currently downloading file, saving temp file on disk , loading np.load avoid if possible. following https://stackoverflow.com/a/28196540/3509999 : obj = s3.object(bucket, key) io.bytesio(obj.get()["body"].read()) f: # rewind file f.seek(0) arr = np.load(f) wiki
Read more

kotlin - Out-projected type in generic interface prohibits the use of metod with generic parameter -

-
i start using kotlin , defined interface this: interface aadapter<vh : recyclerview.viewholder> { fun oncreateaviewholder(parent: viewgroup): vh fun onbindaviewholder(v: vh, position: int) } and when try use on code: class klasa ( private val adapter: aadapter<*> ) { fun dosth(){ //... val vh = this.adapter.oncreateaviewholder(parent) //on below line error adapter.onbindaviewholder(v, position) //... } } i error out-projected type 'aadapter<*>' prohibits use of 'public abstract fun onbindaviewholder(v: t, position: int): unit i tied add "in" or "out" definition i'm confused. how allow it. replace aadapter<*> aadapter<recyclerview.viewholder> . class klasa ( private val adapter: aadapter<recyclerview.viewholder> ) { // ... because have declared aadapter has type parameter vh type subclass of recyclerview.
Read more