首先聲明,若是真的這麼作了也就失去了 bootstrap 多分辨率適配的好處。bootstrap 的 modal 窗口可以自動在不一樣分辨率下用不一樣的寬度,這就是它的特點呢。html
以默認大小的 modal 爲例,要作改變寬度其實只須要在 .modal-dialog
樣式上作文章就好了。爲了簡單,我如今直接寫在元素標籤上了。bootstrap
關鍵三點:segmentfault
display: inline-block
;text-center
樣式居中;width: auto
HTML 代碼:post
<div id="dialog" class="modal fade text-center"> <div class="modal-dialog" style="display: inline-block; width: auto;"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button> <h4 class="modal-title">Modal title</h4> </div> <div class="modal-body"> <p>One fine body…</p> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> <button type="button" class="btn btn-primary">Save changes</button> </div> </div> </div> </div> <script