如何在引導程序中居中對齊輸入組
[英]How to center-align input group in bootstrap
問題描述
我試圖對齊我的搜索欄，使其位於中心，但由於某種原因它停留在左側，這是我的代碼：
<head> <style> html { overflow: auto; } html, body, iframe { margin: 0px; padding: 0px; height: 100%; border: none; } iframe { display: block; width: 100%; border: none; overflow-y: auto; overflow-x: hidden; } @media (min-width: 1200px) {.container{ max-width: 400px; } } #over { font-size:5em; position:absolute; top:20px; left:20px; z-index:2 } </style> </head> <div id="over" class="container"> <div class="row"> <div id="over" class="input-group bg-white"> <input type="search" id="mapinput" class="form-control rounded" placeholder="Город" aria-label="Search" aria-describedby="search-addon" /> <button type="button" onclick="changecity();" class="btn btn-outline-primary">Поиск</button> </div> </div> </div> <iframe id="mapframe" src="https://maps.google.com/maps?q=Moscow&t=k&z=13&ie=UTF8&iwloc=&output=embed" style="border: 0; width: 100%; height: 100%">Your browser doesn't support iFrames.</iframe>
這就是它所顯示的
如何解決此問題並使搜索欄居中？
2 個解決方案
解決方案1
0 2022-01-01 23:30:55
這是因為有一個position: absolute; 在#over其更改為relative ，它應該可以正常工作。 請參閱我在下面所做的 CSS 更改。
#over { font-size: 5em; position: relative;important: top; 38px:important; z-index: 2; }
<head> <style> html { overflow: auto; } html, body, iframe { margin: 0px; padding: 0px; height: 100%; border: none; } iframe { display: block; width: 100%; border: none; overflow-y: auto; overflow-x: hidden; } @media (min-width: 1200px) {.container{ max-width: 400px; } } #over { font-size:5em; position:absolute; top:20px; left:20px; z-index:2 } </style> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous"> </head> <div id="over" class="container"> <div class="row"> <div id="over" class="input-group bg-white"> <input type="search" id="mapinput" class="form-control rounded" placeholder="Город" aria-label="Search" aria-describedby="search-addon" /> <button type="button" onclick="changecity();" class="btn btn-outline-primary">Поиск</button> </div> </div> </div> <iframe id="mapframe" src="https://maps.google.com/maps?q=Moscow&t=k&z=13&ie=UTF8&iwloc=&output=embed" style="border: 0; width: 100%; height: 100%">Your browser doesn't support iFrames.</iframe>
解決方案2
0 2022-01-02 01:19:21
您可以使您的iframe position: absolute並將頂部和左側放置在0 ，然后使您的#over元素#over position: relative和display:flex如果您願意，可以使用top定位justify-content: center 。
html { overflow: auto; } html, body, iframe { margin: 0px; padding: 0px; height: 100%; border: none; } iframe { display: block; position: absolute; left: 0; top: 0; width: 100%; border: none; overflow-y: auto; overflow-x: hidden; } @media (min-width: 1200px) {.container { max-width: 400px; } } #over { font-size: 5em; position: relative; top: 3.5rem; display: flex; justify-content: center; z-index: 2; }
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous"> <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script> <div id="over" class="container"> <div class="row"> <div id="over" class="input-group bg-white"> <input type="search" id="mapinput" class="form-control rounded" placeholder="Город" aria-label="Search" aria-describedby="search-addon" /> <button type="button" onclick="changecity();" class="btn btn-outline-primary">Поиск</button> </div> </div> </div> <iframe id="mapframe" src="https://maps.google.com/maps?q=Moscow&t=k&z=13&ie=UTF8&iwloc=&output=embed" style="border: 0; width: 100%; height: 100%">Your browser doesn't support iFrames.</iframe>
在Bootstrap 4.1中使col文本與背景顏色垂直居中對齊
[英]Vertically center-align col text with background color in bootstrap 4.1
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