placeholder.mdx 8.6 KB

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  1. ---
  2. title: Placeholder
  3. summary: Placeholder is used to reserve space for content that will soon appear in a layout.
  4. description: Reserve space for upcoming content.
  5. ---
  6. ## Placeholder line
  7. Placeholder lines can contain lines of text. Their length is different and depends on the `col-` class.
  8. ```html example columns={1}
  9. <div class="placeholder col-9"></div>
  10. <div class="placeholder col-11"></div>
  11. <div class="placeholder col-10"></div>
  12. <div class="placeholder col-8"></div>
  13. ```
  14. However, it may be useful to specify the full width in order to fit the content more effectively.
  15. ```html example columns={1}
  16. <div class="placeholder col-12"></div>
  17. <div class="placeholder col-12"></div>
  18. <div class="placeholder col-12"></div>
  19. <div class="placeholder col-12"></div>
  20. ```
  21. You can also move the lines to the right or center them:
  22. ```html example columns={1}
  23. <div class="text-end">
  24. <div class="placeholder col-11"></div>
  25. <div class="placeholder col-10"></div>
  26. <div class="placeholder col-8"></div>
  27. </div>
  28. <div class="text-center mt-3">
  29. <div class="placeholder col-11"></div>
  30. <div class="placeholder col-10"></div>
  31. <div class="placeholder col-8"></div>
  32. </div>
  33. ```
  34. ## Placeholder heading
  35. A placeholder can also contain an element that looks like a header:
  36. ```html example columns={1}
  37. <div class="placeholder col-9 mb-3"></div>
  38. <div class="placeholder placeholder-xs col-10"></div>
  39. <div class="placeholder placeholder-xs col-11"></div>
  40. ```
  41. ## Placeholder avatar
  42. You can use a placeholder that will look like an avatar. You can use the `avatar` component, and get the image in the right proportions.
  43. ```html
  44. <div class="avatar placeholder"></div>
  45. ```
  46. Look at the example below to see how the avatar placeholder looks.
  47. ```html example columns={1} centered
  48. <div class="row">
  49. <div class="col-auto">
  50. <div class="avatar placeholder"></div>
  51. </div>
  52. <div class="col">
  53. <div class="placeholder col-9"></div>
  54. <div class="placeholder col-11"></div>
  55. </div>
  56. </div>
  57. ```
  58. You can also use the `avatar` component with different sizes. Look at the example below to see how the avatar placeholder looks.
  59. ```html example centered separated
  60. <div class="avatar avatar-xl placeholder"></div>
  61. <div class="avatar avatar-lg placeholder"></div>
  62. <div class="avatar avatar-md placeholder"></div>
  63. <div class="avatar placeholder"></div>
  64. <div class="avatar avatar-sm placeholder"></div>
  65. <div class="avatar avatar-xs placeholder"></div>
  66. ```
  67. ## Placeholder image
  68. You can use a placeholder that will look like a picture. You can use the `ratio` component, and get the image in the right proportions.
  69. ```html example columns={1} height={500} scrollable separated vertical
  70. <div class="ratio ratio-1x1 placeholder">
  71. <div class="placeholder-image"></div>
  72. </div>
  73. <div class="ratio ratio-4x3 placeholder">
  74. <div class="placeholder-image"></div>
  75. </div>
  76. <div class="ratio ratio-16x9 placeholder">
  77. <div class="placeholder-image"></div>
  78. </div>
  79. <div class="ratio ratio-21x9 placeholder">
  80. <div class="placeholder-image"></div>
  81. </div>
  82. ```
  83. ## Placeholder color
  84. By default, the placeholder uses `currentColor`. This can be overridden with a custom color or utility class. Full color classes are available for background colors.
  85. ```html
  86. <span class="placeholder col-12 bg-dark"></span>
  87. ```
  88. Look at the example below to see how the color affects the placeholder.
  89. ```html example columns={1} height={240}
  90. <span class="placeholder col-12"></span>
  91. <span class="placeholder col-12 bg-primary"></span>
  92. <span class="placeholder col-12 bg-secondary"></span>
  93. <span class="placeholder col-12 bg-success"></span>
  94. <span class="placeholder col-12 bg-danger"></span>
  95. <span class="placeholder col-12 bg-warning"></span>
  96. <span class="placeholder col-12 bg-info"></span>
  97. <span class="placeholder col-12 bg-light"></span>
  98. <span class="placeholder col-12 bg-dark"></span>
  99. ```
  100. ## Placeholder sizing
  101. The sizes of placeholders are based on the typographic style of the parent element. Customize them with sizing modifiers: `.placeholder-lg`, `.placeholder-sm`, or `.placeholder-xs`.
  102. ```html example columns={1}
  103. <span class="placeholder col-12 placeholder-lg"></span>
  104. <span class="placeholder col-12"></span>
  105. <span class="placeholder col-12 placeholder-sm"></span>
  106. <span class="placeholder col-12 placeholder-xs"></span>
  107. ```
  108. ## Animation
  109. Animate placeholders with `.placeholder-glow` or `.placeholder-wave` to better convey the perception of something being actively loaded.
  110. ```html example columns={1}
  111. <p class="placeholder-glow">
  112. <span class="placeholder col-12"></span>
  113. </p>
  114. <p class="placeholder-wave">
  115. <span class="placeholder col-12"></span>
  116. </p>
  117. ```
  118. ## Live examples
  119. See in the following examples how else you can use the placeholder component
  120. ```html example columns={1} height={1000} separated vertical scrollable
  121. <div class="card placeholder-glow">
  122. <div class="ratio ratio-21x9 card-img-top placeholder"></div>
  123. <div class="card-body">
  124. <div class="placeholder col-9 mb-3"></div>
  125. <div class="placeholder placeholder-xs col-10"></div>
  126. <div class="placeholder placeholder-xs col-11"></div>
  127. <div class="mt-3">
  128. <a
  129. href="#"
  130. tabindex="-1"
  131. class="btn btn-primary disabled placeholder col-4"
  132. aria-hidden="true"
  133. ></a>
  134. </div>
  135. </div>
  136. </div>
  137. <div class="card">
  138. <div class="row g-0 align-items-center placeholder-glow">
  139. <div class="col-3">
  140. <div class="ratio ratio-1x1 card-img-start placeholder"></div>
  141. </div>
  142. <div class="col">
  143. <div class="card-body">
  144. <div class="placeholder col-9 mb-3"></div>
  145. <div class="placeholder placeholder-xs col-10"></div>
  146. <div class="placeholder placeholder-xs col-11"></div>
  147. </div>
  148. </div>
  149. </div>
  150. </div>
  151. <div class="card">
  152. <div class="card-body">
  153. <div class="row">
  154. <div class="col-auto">
  155. <div class="avatar avatar-rounded placeholder"></div>
  156. </div>
  157. <div class="col">
  158. <div class="placeholder placeholder-xs col-9"></div>
  159. <div class="placeholder placeholder-xs col-7"></div>
  160. </div>
  161. </div>
  162. </div>
  163. </div>
  164. <div class="card">
  165. <div class="card-body py-5 text-center">
  166. <div>
  167. <div class="avatar avatar-rounded avatar-lg placeholder mb-3"></div>
  168. </div>
  169. <div class="mt w-75 mx-auto">
  170. <div class="placeholder col-9 mb-3"></div>
  171. <div class="placeholder placeholder-xs col-10"></div>
  172. </div>
  173. </div>
  174. </div>
  175. <div class="card">
  176. <ul class="list-group list-group-flush placeholder-glow">
  177. <li class="list-group-item">
  178. <div class="row align-items-center">
  179. <div class="col-auto">
  180. <div class="avatar avatar-rounded placeholder"></div>
  181. </div>
  182. <div class="col-7">
  183. <div class="placeholder placeholder-xs col-9"></div>
  184. <div class="placeholder placeholder-xs col-7"></div>
  185. </div>
  186. <div class="col-2 ms-auto text-end">
  187. <div class="placeholder placeholder-xs col-8"></div>
  188. <div class="placeholder placeholder-xs col-10"></div>
  189. </div>
  190. </div>
  191. </li>
  192. <li class="list-group-item">
  193. <div class="row align-items-center">
  194. <div class="col-auto">
  195. <div class="avatar avatar-rounded placeholder"></div>
  196. </div>
  197. <div class="col-7">
  198. <div class="placeholder placeholder-xs col-9"></div>
  199. <div class="placeholder placeholder-xs col-7"></div>
  200. </div>
  201. <div class="col-2 ms-auto text-end">
  202. <div class="placeholder placeholder-xs col-8"></div>
  203. <div class="placeholder placeholder-xs col-10"></div>
  204. </div>
  205. </div>
  206. </li>
  207. <li class="list-group-item">
  208. <div class="row align-items-center">
  209. <div class="col-auto">
  210. <div class="avatar avatar-rounded placeholder"></div>
  211. </div>
  212. <div class="col-7">
  213. <div class="placeholder placeholder-xs col-9"></div>
  214. <div class="placeholder placeholder-xs col-7"></div>
  215. </div>
  216. <div class="col-2 ms-auto text-end">
  217. <div class="placeholder placeholder-xs col-8"></div>
  218. <div class="placeholder placeholder-xs col-10"></div>
  219. </div>
  220. </div>
  221. </li>
  222. <li class="list-group-item">
  223. <div class="row align-items-center">
  224. <div class="col-auto">
  225. <div class="avatar avatar-rounded placeholder"></div>
  226. </div>
  227. <div class="col-7">
  228. <div class="placeholder placeholder-xs col-9"></div>
  229. <div class="placeholder placeholder-xs col-7"></div>
  230. </div>
  231. <div class="col-2 ms-auto text-end">
  232. <div class="placeholder placeholder-xs col-8"></div>
  233. <div class="placeholder placeholder-xs col-10"></div>
  234. </div>
  235. </div>
  236. </li>
  237. </ul>
  238. </div>
  239. ```