Avanoa

O le Bootstrap e aofia ai le tele o vaega fa'apipi'i tali ma vasega fa'aoga e fa'aleleia ai foliga o se elemene.

E faapefea ona galue

Tofi tali-faauo marginpo o paddingtulaga faatauaina i se elemene po o se vaega itiiti o ona itu ma vasega pupuu. E aofia ai le lagolago mo meatotino ta'itasi, meatotino uma, ma mea tu'usa'o ma fa'ata'atia. O vasega e fausia mai se fa'afanua fa'aletonu Sass e amata mai .25remi le 3rem.

Notation

Fa'aoga avanoa e fa'aoga i vaega ta'oto uma, mai xsi le xl, e leai se fa'apu'upu'u va'aiga i totonu. E mafua ona o na vasega o loʻo faʻaoga mai min-width: 0ma luga, ma o lea e le o noatia i se fesili a le aufaasālalau. Ae peitai, o vaega o totoe, e aofia ai se faapuupuuga.

O vasega ua faaigoaina e faaaoga ai le faatulagaga {property}{sides}-{size}mo xsma {property}{sides}-{breakpoint}-{size}mo sm, md, lg, ma xl.

Afai o meatotino o se tasi o:

m- mo vasega ua setiinamargin
p- mo vasega ua setiinapadding

O fea itu o se tasi o:

t- mo vasega e seti margin-toppepadding-top
b- mo vasega e seti margin-bottompepadding-bottom
l- mo vasega e seti margin-leftpepadding-left
r- mo vasega e seti margin-rightpepadding-right
x- mo vasega e seti uma *-leftma*-right
y- mo vasega e seti uma *-topma*-bottom
avanoa - mo vasega e seti se marginpo'o paddingluga uma 4 itu o le elemene

Ole tele ole tasi ole:

0- mo vasega e aveese le marginpo paddingo le setiina i0
1- (e ala i le faaletonu) mo vasega e setiina le marginpo paddingo le$spacer * .25
2- (e ala i le faaletonu) mo vasega e setiina le marginpo paddingo le$spacer * .5
3- (e ala i le faaletonu) mo vasega e setiina le marginpo paddingo le$spacer
4- (e ala i le faaletonu) mo vasega e setiina le marginpo paddingo le$spacer * 1.5
5- (e ala i le faaletonu) mo vasega e setiina le marginpo paddingo le$spacer * 3
auto- mo vasega e setiina le margini le auto

(E mafai ona e faʻaopoopoina le tele o lapopoa e ala i le faʻaopoopoina o faʻamaumauga i le $spacersfesuiaiga o faʻafanua Sass.)

Faataitaiga

O nisi nei o fa'ata'ita'iga fa'atusa o nei vasega:

.mt-0 {
  margin-top: 0 !important;
}

.ml-1 {
  margin-left: ($spacer * .25) !important;
}

.px-2 {
  padding-left: ($spacer * .5) !important;
  padding-right: ($spacer * .5) !important;
}

.p-3 {
  padding: $spacer !important;
}

Tutotonuga faalava

Additionally, Bootstrap also includes an .mx-auto class for horizontally centering fixed-width block level content—that is, content that has display: block and a width set—by setting the horizontal margins to auto.

Centered element

<div class="mx-auto" style="width: 200px;">
  Centered element
</div>

Negative margin

In CSS, margin properties can utilize negative values (padding cannot). As of 4.2, we’ve added negative margin utilities for every non-zero integer size listed above (e.g., 1, 2, 3, 4, 5). These utilities are ideal for customizing grid column gutters across breakpoints.

The syntax is nearly the same as the default, positive margin utilities, but with the addition of n before the requested size. Here’s an example class that’s the opposite of .mt-1:

.mt-n1 {
  margin-top: -0.25rem !important;
}

O se fa'ata'ita'iga lea o le fa'avasegaina o le fa'asologa o Bootstrap i le vaeluaga ( md) vaeluaga ma luga. Ua matou fa'aopoopoina le .colpadding .px-md-5ma ona fa'afetaui lea .mx-md-n5i le matua .row.

Fa'apipi'i koluma fa'apitoa

<div class="row mx-md-n5">
  <div class="col px-md-5"><div class="p-3 border bg-light">Custom column padding</div></div>
  <div class="col px-md-5"><div class="p-3 border bg-light">Custom column padding</div></div>
</div>