navbar.less 14 KB

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  1. //
  2. // Navbars
  3. // --------------------------------------------------
  4. // Wrapper and base class
  5. //
  6. // Provide a static navbar from which we expand to create full-width, fixed, and
  7. // other navbar variations.
  8. .navbar {
  9. position: relative;
  10. min-height: @navbar-height; // Ensure a navbar always shows (e.g., without a .navbar-brand in collapsed mode)
  11. margin-bottom: @navbar-margin-bottom;
  12. border: 1px solid transparent;
  13. // Prevent floats from breaking the navbar
  14. &:extend(.clearfix all);
  15. @media (min-width: @grid-float-breakpoint) {
  16. border-radius: @navbar-border-radius;
  17. }
  18. }
  19. // Navbar heading
  20. //
  21. // Groups `.navbar-brand` and `.navbar-toggle` into a single component for easy
  22. // styling of responsive aspects.
  23. .navbar-header {
  24. &:extend(.clearfix all);
  25. @media (min-width: @grid-float-breakpoint) {
  26. float: left;
  27. }
  28. }
  29. // Navbar collapse (body)
  30. //
  31. // Group your navbar content into this for easy collapsing and expanding across
  32. // various device sizes. By default, this content is collapsed when <768px, but
  33. // will expand past that for a horizontal display.
  34. //
  35. // To start (on mobile devices) the navbar links, forms, and buttons are stacked
  36. // vertically and include a `max-height` to overflow in case you have too much
  37. // content for the user's viewport.
  38. .navbar-collapse {
  39. overflow-x: visible;
  40. padding-right: @navbar-padding-horizontal;
  41. padding-left: @navbar-padding-horizontal;
  42. border-top: 1px solid transparent;
  43. box-shadow: inset 0 1px 0 rgba(255,255,255,.1);
  44. &:extend(.clearfix all);
  45. -webkit-overflow-scrolling: touch;
  46. &.in {
  47. overflow-y: auto;
  48. }
  49. @media (min-width: @grid-float-breakpoint) {
  50. width: auto;
  51. border-top: 0;
  52. box-shadow: none;
  53. &.collapse {
  54. display: block !important;
  55. visibility: visible !important;
  56. height: auto !important;
  57. padding-bottom: 0; // Override default setting
  58. overflow: visible !important;
  59. }
  60. &.in {
  61. overflow-y: visible;
  62. }
  63. // Undo the collapse side padding for navbars with containers to ensure
  64. // alignment of right-aligned contents.
  65. .navbar-fixed-top &,
  66. .navbar-static-top &,
  67. .navbar-fixed-bottom & {
  68. padding-left: 0;
  69. padding-right: 0;
  70. }
  71. }
  72. }
  73. .navbar-fixed-top,
  74. .navbar-fixed-bottom {
  75. .navbar-collapse {
  76. max-height: @navbar-collapse-max-height;
  77. @media (max-device-width: @screen-xs-min) and (orientation: landscape) {
  78. max-height: 200px;
  79. }
  80. }
  81. }
  82. // Both navbar header and collapse
  83. //
  84. // When a container is present, change the behavior of the header and collapse.
  85. .container,
  86. .container-fluid {
  87. > .navbar-header,
  88. > .navbar-collapse {
  89. margin-right: -@navbar-padding-horizontal;
  90. margin-left: -@navbar-padding-horizontal;
  91. @media (min-width: @grid-float-breakpoint) {
  92. margin-right: 0;
  93. margin-left: 0;
  94. }
  95. }
  96. }
  97. //
  98. // Navbar alignment options
  99. //
  100. // Display the navbar across the entirety of the page or fixed it to the top or
  101. // bottom of the page.
  102. // Static top (unfixed, but 100% wide) navbar
  103. .navbar-static-top {
  104. z-index: @zindex-navbar;
  105. border-width: 0 0 1px;
  106. @media (min-width: @grid-float-breakpoint) {
  107. border-radius: 0;
  108. }
  109. }
  110. // Fix the top/bottom navbars when screen real estate supports it
  111. .navbar-fixed-top,
  112. .navbar-fixed-bottom {
  113. position: fixed;
  114. right: 0;
  115. left: 0;
  116. z-index: @zindex-navbar-fixed;
  117. // Undo the rounded corners
  118. @media (min-width: @grid-float-breakpoint) {
  119. border-radius: 0;
  120. }
  121. }
  122. .navbar-fixed-top {
  123. top: 0;
  124. border-width: 0 0 1px;
  125. }
  126. .navbar-fixed-bottom {
  127. bottom: 0;
  128. margin-bottom: 0; // override .navbar defaults
  129. border-width: 1px 0 0;
  130. }
  131. // Brand/project name
  132. .navbar-brand {
  133. float: left;
  134. padding: @navbar-padding-vertical @navbar-padding-horizontal;
  135. font-size: @font-size-large;
  136. line-height: @line-height-computed;
  137. height: @navbar-height;
  138. &:hover,
  139. &:focus {
  140. text-decoration: none;
  141. }
  142. > img {
  143. display: block;
  144. }
  145. @media (min-width: @grid-float-breakpoint) {
  146. .navbar > .container &,
  147. .navbar > .container-fluid & {
  148. margin-left: -@navbar-padding-horizontal;
  149. }
  150. }
  151. }
  152. // Navbar toggle
  153. //
  154. // Custom button for toggling the `.navbar-collapse`, powered by the collapse
  155. // JavaScript plugin.
  156. .navbar-toggle {
  157. position: relative;
  158. float: right;
  159. margin-right: @navbar-padding-horizontal;
  160. padding: 9px 10px;
  161. .navbar-vertical-align(34px);
  162. background-color: transparent;
  163. background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
  164. border: 1px solid transparent;
  165. border-radius: @border-radius-base;
  166. // We remove the `outline` here, but later compensate by attaching `:hover`
  167. // styles to `:focus`.
  168. &:focus {
  169. outline: 0;
  170. }
  171. // Bars
  172. .icon-bar {
  173. display: block;
  174. width: 22px;
  175. height: 2px;
  176. border-radius: 1px;
  177. }
  178. .icon-bar + .icon-bar {
  179. margin-top: 4px;
  180. }
  181. @media (min-width: @grid-float-breakpoint) {
  182. display: none;
  183. }
  184. }
  185. // Navbar nav links
  186. //
  187. // Builds on top of the `.nav` components with its own modifier class to make
  188. // the nav the full height of the horizontal nav (above 768px).
  189. .navbar-nav {
  190. margin: (@navbar-padding-vertical / 2) -@navbar-padding-horizontal;
  191. > li > a {
  192. padding-top: 10px;
  193. padding-bottom: 10px;
  194. line-height: @line-height-computed;
  195. }
  196. @media (max-width: @grid-float-breakpoint-max) {
  197. // Dropdowns get custom display when collapsed
  198. .open .dropdown-menu {
  199. position: static;
  200. float: none;
  201. width: auto;
  202. margin-top: 0;
  203. background-color: transparent;
  204. border: 0;
  205. box-shadow: none;
  206. > li > a,
  207. .dropdown-header {
  208. padding: 5px 15px 5px 25px;
  209. }
  210. > li > a {
  211. line-height: @line-height-computed;
  212. &:hover,
  213. &:focus {
  214. background-image: none;
  215. }
  216. }
  217. }
  218. }
  219. // Uncollapse the nav
  220. @media (min-width: @grid-float-breakpoint) {
  221. float: left;
  222. margin: 0;
  223. > li {
  224. float: left;
  225. > a {
  226. padding-top: @navbar-padding-vertical;
  227. padding-bottom: @navbar-padding-vertical;
  228. }
  229. }
  230. }
  231. }
  232. // Navbar form
  233. //
  234. // Extension of the `.form-inline` with some extra flavor for optimum display in
  235. // our navbars.
  236. .navbar-form {
  237. margin-left: -@navbar-padding-horizontal;
  238. margin-right: -@navbar-padding-horizontal;
  239. padding: 10px @navbar-padding-horizontal;
  240. border-top: 1px solid transparent;
  241. border-bottom: 1px solid transparent;
  242. @shadow: inset 0 1px 0 rgba(255,255,255,.1), 0 1px 0 rgba(255,255,255,.1);
  243. .box-shadow(@shadow);
  244. // Mixin behavior for optimum display
  245. .form-inline();
  246. .form-group {
  247. @media (max-width: @grid-float-breakpoint-max) {
  248. margin-bottom: 5px;
  249. &:last-child {
  250. margin-bottom: 0;
  251. }
  252. }
  253. }
  254. // Vertically center in expanded, horizontal navbar
  255. .navbar-vertical-align(@input-height-base);
  256. // Undo 100% width for pull classes
  257. @media (min-width: @grid-float-breakpoint) {
  258. width: auto;
  259. border: 0;
  260. margin-left: 0;
  261. margin-right: 0;
  262. padding-top: 0;
  263. padding-bottom: 0;
  264. .box-shadow(none);
  265. }
  266. }
  267. // Dropdown menus
  268. // Menu position and menu carets
  269. .navbar-nav > li > .dropdown-menu {
  270. margin-top: 0;
  271. .border-top-radius(0);
  272. }
  273. // Menu position and menu caret support for dropups via extra dropup class
  274. .navbar-fixed-bottom .navbar-nav > li > .dropdown-menu {
  275. margin-bottom: 0;
  276. .border-top-radius(@navbar-border-radius);
  277. .border-bottom-radius(0);
  278. }
  279. // Buttons in navbars
  280. //
  281. // Vertically center a button within a navbar (when *not* in a form).
  282. .navbar-btn {
  283. .navbar-vertical-align(@input-height-base);
  284. &.btn-sm {
  285. .navbar-vertical-align(@input-height-small);
  286. }
  287. &.btn-xs {
  288. .navbar-vertical-align(22);
  289. }
  290. }
  291. // Text in navbars
  292. //
  293. // Add a class to make any element properly align itself vertically within the navbars.
  294. .navbar-text {
  295. .navbar-vertical-align(@line-height-computed);
  296. @media (min-width: @grid-float-breakpoint) {
  297. float: left;
  298. margin-left: @navbar-padding-horizontal;
  299. margin-right: @navbar-padding-horizontal;
  300. }
  301. }
  302. // Component alignment
  303. //
  304. // Repurpose the pull utilities as their own navbar utilities to avoid specificity
  305. // issues with parents and chaining. Only do this when the navbar is uncollapsed
  306. // though so that navbar contents properly stack and align in mobile.
  307. //
  308. // Declared after the navbar components to ensure more specificity on the margins.
  309. @media (min-width: @grid-float-breakpoint) {
  310. .navbar-left { .pull-left(); }
  311. .navbar-right {
  312. .pull-right();
  313. margin-right: -@navbar-padding-horizontal;
  314. ~ .navbar-right {
  315. margin-right: 0;
  316. }
  317. }
  318. }
  319. // Alternate navbars
  320. // --------------------------------------------------
  321. // Default navbar
  322. .navbar-default {
  323. background-color: @navbar-default-bg;
  324. border-color: @navbar-default-border;
  325. .navbar-brand {
  326. color: @navbar-default-brand-color;
  327. &:hover,
  328. &:focus {
  329. color: @navbar-default-brand-hover-color;
  330. background-color: @navbar-default-brand-hover-bg;
  331. }
  332. }
  333. .navbar-text {
  334. color: @navbar-default-color;
  335. }
  336. .navbar-nav {
  337. > li > a {
  338. color: @navbar-default-link-color;
  339. &:hover,
  340. &:focus {
  341. color: @navbar-default-link-hover-color;
  342. background-color: @navbar-default-link-hover-bg;
  343. }
  344. }
  345. > .active > a {
  346. &,
  347. &:hover,
  348. &:focus {
  349. color: @navbar-default-link-active-color;
  350. background-color: @navbar-default-link-active-bg;
  351. }
  352. }
  353. > .disabled > a {
  354. &,
  355. &:hover,
  356. &:focus {
  357. color: @navbar-default-link-disabled-color;
  358. background-color: @navbar-default-link-disabled-bg;
  359. }
  360. }
  361. }
  362. .navbar-toggle {
  363. border-color: @navbar-default-toggle-border-color;
  364. &:hover,
  365. &:focus {
  366. background-color: @navbar-default-toggle-hover-bg;
  367. }
  368. .icon-bar {
  369. background-color: @navbar-default-toggle-icon-bar-bg;
  370. }
  371. }
  372. .navbar-collapse,
  373. .navbar-form {
  374. border-color: @navbar-default-border;
  375. }
  376. // Dropdown menu items
  377. .navbar-nav {
  378. // Remove background color from open dropdown
  379. > .open > a {
  380. &,
  381. &:hover,
  382. &:focus {
  383. background-color: @navbar-default-link-active-bg;
  384. color: @navbar-default-link-active-color;
  385. }
  386. }
  387. @media (max-width: @grid-float-breakpoint-max) {
  388. // Dropdowns get custom display when collapsed
  389. .open .dropdown-menu {
  390. > li > a {
  391. color: @navbar-default-link-color;
  392. &:hover,
  393. &:focus {
  394. color: @navbar-default-link-hover-color;
  395. background-color: @navbar-default-link-hover-bg;
  396. }
  397. }
  398. > .active > a {
  399. &,
  400. &:hover,
  401. &:focus {
  402. color: @navbar-default-link-active-color;
  403. background-color: @navbar-default-link-active-bg;
  404. }
  405. }
  406. > .disabled > a {
  407. &,
  408. &:hover,
  409. &:focus {
  410. color: @navbar-default-link-disabled-color;
  411. background-color: @navbar-default-link-disabled-bg;
  412. }
  413. }
  414. }
  415. }
  416. }
  417. // Links in navbars
  418. //
  419. // Add a class to ensure links outside the navbar nav are colored correctly.
  420. .navbar-link {
  421. color: @navbar-default-link-color;
  422. &:hover {
  423. color: @navbar-default-link-hover-color;
  424. }
  425. }
  426. .btn-link {
  427. color: @navbar-default-link-color;
  428. &:hover,
  429. &:focus {
  430. color: @navbar-default-link-hover-color;
  431. }
  432. &[disabled],
  433. fieldset[disabled] & {
  434. &:hover,
  435. &:focus {
  436. color: @navbar-default-link-disabled-color;
  437. }
  438. }
  439. }
  440. }
  441. // Inverse navbar
  442. .navbar-inverse {
  443. background-color: @navbar-inverse-bg;
  444. border-color: @navbar-inverse-border;
  445. .navbar-brand {
  446. color: @navbar-inverse-brand-color;
  447. &:hover,
  448. &:focus {
  449. color: @navbar-inverse-brand-hover-color;
  450. background-color: @navbar-inverse-brand-hover-bg;
  451. }
  452. }
  453. .navbar-text {
  454. color: @navbar-inverse-color;
  455. }
  456. .navbar-nav {
  457. > li > a {
  458. color: @navbar-inverse-link-color;
  459. &:hover,
  460. &:focus {
  461. color: @navbar-inverse-link-hover-color;
  462. background-color: @navbar-inverse-link-hover-bg;
  463. }
  464. }
  465. > .active > a {
  466. &,
  467. &:hover,
  468. &:focus {
  469. color: @navbar-inverse-link-active-color;
  470. background-color: @navbar-inverse-link-active-bg;
  471. }
  472. }
  473. > .disabled > a {
  474. &,
  475. &:hover,
  476. &:focus {
  477. color: @navbar-inverse-link-disabled-color;
  478. background-color: @navbar-inverse-link-disabled-bg;
  479. }
  480. }
  481. }
  482. // Darken the responsive nav toggle
  483. .navbar-toggle {
  484. border-color: @navbar-inverse-toggle-border-color;
  485. &:hover,
  486. &:focus {
  487. background-color: @navbar-inverse-toggle-hover-bg;
  488. }
  489. .icon-bar {
  490. background-color: @navbar-inverse-toggle-icon-bar-bg;
  491. }
  492. }
  493. .navbar-collapse,
  494. .navbar-form {
  495. border-color: darken(@navbar-inverse-bg, 7%);
  496. }
  497. // Dropdowns
  498. .navbar-nav {
  499. > .open > a {
  500. &,
  501. &:hover,
  502. &:focus {
  503. background-color: @navbar-inverse-link-active-bg;
  504. color: @navbar-inverse-link-active-color;
  505. }
  506. }
  507. @media (max-width: @grid-float-breakpoint-max) {
  508. // Dropdowns get custom display
  509. .open .dropdown-menu {
  510. > .dropdown-header {
  511. border-color: @navbar-inverse-border;
  512. }
  513. .divider {
  514. background-color: @navbar-inverse-border;
  515. }
  516. > li > a {
  517. color: @navbar-inverse-link-color;
  518. &:hover,
  519. &:focus {
  520. color: @navbar-inverse-link-hover-color;
  521. background-color: @navbar-inverse-link-hover-bg;
  522. }
  523. }
  524. > .active > a {
  525. &,
  526. &:hover,
  527. &:focus {
  528. color: @navbar-inverse-link-active-color;
  529. background-color: @navbar-inverse-link-active-bg;
  530. }
  531. }
  532. > .disabled > a {
  533. &,
  534. &:hover,
  535. &:focus {
  536. color: @navbar-inverse-link-disabled-color;
  537. background-color: @navbar-inverse-link-disabled-bg;
  538. }
  539. }
  540. }
  541. }
  542. }
  543. .navbar-link {
  544. color: @navbar-inverse-link-color;
  545. &:hover {
  546. color: @navbar-inverse-link-hover-color;
  547. }
  548. }
  549. .btn-link {
  550. color: @navbar-inverse-link-color;
  551. &:hover,
  552. &:focus {
  553. color: @navbar-inverse-link-hover-color;
  554. }
  555. &[disabled],
  556. fieldset[disabled] & {
  557. &:hover,
  558. &:focus {
  559. color: @navbar-inverse-link-disabled-color;
  560. }
  561. }
  562. }
  563. }