A thlen theihna tur
Bootstrap-in a hman theih tur content siamna atana a features leh a tihkhawtlai dante tawi te te.
Bootstrap hian hman awlsam tak framework a siam a, ready-made styles, layout tools, leh interactive components te a pe a, developer te chuan website leh application te chu hmuhnawm tak tak, functionally rich tak tak leh out of the box atanga hmuh theih tur an siam thei a ni.
Bootstrap hmanga siam project eng pawha hman theih zawng zawng chu a ziaktu markup, additional styling, leh scripting an dah telnaah a innghat nasa hle. Mahse, hengte hi dik taka kalpui a nih chuan, Bootstrap hmanga WCAG 2.0 (A/AA/AAA), Section 508 leh a ang chi accessibility standard leh requirements tihlawhtling thei website leh application siam chu a famkimin a theih tur a ni.
Bootstrap hian styling leh layout hi markup structure hrang hrangah hman theih a ni. He documentation hian developer-te hnena Bootstrap hman dan ngei entir nan best practice entirnan pek a tum a, semantic markup dik tak entir a tum a, chutah chuan accessibility chungchanga harsatna awm thei turte chinfel theih dan tur pawh a tel a ni.
Bootstrap-a interactive components—modal dialogs, dropdown menus leh custom tooltips te hi touch, mouse leh keyboard hmangtute tana thawk thei tura siam a ni. WAI - ARIA role leh attribute inzawmte hman hmangin heng component te hi assistive technology (screen reader ang chi) hmanga hriatthiam theih leh hman theih a ni bawk tur a ni.
Bootstrap-a component-te hi tumruh taka generic taka siam a nih avangin, ziaktute chuan an component awmzia leh a hnathawh dan dik zawka hriat theih nan ARIA role leh attribute dangte bakah JavaScript behavior te pawh an dah tel a ngai mai thei. Hei hi documentation-ah hian tarlan a ni tlangpui.
Tuna Bootstrap default palette siamtu color tam zawk—button danglamna, alert danglamna, form validation indicator ang chi thil atana framework pumpuiah hman thinte hian a dodal a nih chuan color contrast tling lo ( WCAG 2.0 color contrast ratio rawt 4.5:1 hnuai lam ) a thlen thin a hnuaiah chuan a light a. Authors te chuan heng default colors te hi an kut hmanga an siam danglam/extend a ngai dawn a, chu chuan color contrast ratio tling tak an neih theih nan.
Content chu hmuh theiha thup tur, mahse screen reader ang chi assistive technology hmanga hman theih reng tur chu .sr-onlyclass hmangin style theih a ni. Hei hi hmuh theiha thu hriat belh emaw, chhinchhiahna emaw (color hman hmanga awmzia tarlan ang chi) dangte pawh hmuh theih loh hmangtute hnena thlen a ngaihna dinhmunah chuan a \angkai thei hle.
<p class="text-danger">
<span class="sr-only">Danger: </span>
This action is not reversible
</p>Visually hidden interactive controls, traditional “skip” link ang chi te tan chuan class .sr-onlynen a inzawm thei . .sr-only-focusableHei hian control chu focus vawi khat (sighted keyboard hmangtute tan) hmuh theih a nih theih nan a pui ang.
<a class="sr-only sr-only-focusable" href="#content">Skip to main content</a>prefers-reduced-motionBootstrap ah hian media feature support a awm bawk . Browser/environment-ah chuan reduced motion atana a duhzawng tarlan theihna tur browser/environment-ah chuan Bootstrap-a CSS transition effect tam zawk (entir nan, modal dialog hawn emaw khar emaw a nih chuan) chu tihtawp a ni ang. Tunah hian macOS leh iOS-ah Safari chauh support a ni.