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, out of the box atanga hmuh theih tur an siam thei a ni.
Thupui tlangpui leh tihkhawtlai theihte
Bootstrap hmanga siam project eng pawha hman theih dan tlangpui chu a ziaktu markup, additional styling, leh scripting an dah tel danah a innghat nasa hle. Mahse, hengte hi dik taka kalpui a nih tawh chuan, Bootstrap hmanga WCAG 2.0 (A/AA/AAA), Section 508 leh a ang chi accessibility standard leh mamawh phuhruk thei website leh application siam chu a famkimin a theih tur a ni.
Structure lam hawia markup a ni
Bootstrap hian styling leh layout hi markup structure hrang hrangah hman theih a ni. He documentation hian developer-te hnenah Bootstrap ngei hman dan entir nan best practice entirnan pek a tum a, semantic markup dik tak entir a tum a, chutah chuan accessibility chungchanga harsatna awm thei te chinfel theih dan tur pawh a tel a ni.
Interactive component hrang hrangte
Bootstrap-a interactive components—modal dialogs, dropdown menu 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.
Color hrang hrang a awm
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 kut hmanga siam danglam/extend a ngai dawn a, chu chuan color contrast ratio tling tak a neih theih nan.
Hmuh theiha thup theih thup
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>Motion tihtlem a ni
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 emaw, carousel-a sliding animation emaw) chu tihtawp a ni ang.