我正在使用引導卡，我想將它們分開 2px 邊距。
盡管如此，當我應用它（使用 Bootstrap 的邊距類或直接在我的樣式表上）時，flex-wrap 觸發器和一張卡片向下一行。
我該如何處理這種行為？
我應該給卡片一個最大寬度嗎？
.dark-theme body,
.dark-theme .card {
background-color: #121212;
color: #ffffffa6;
}
.dark-theme section.card {
background-color: #464646;
}
.card {
border-width: 0;
margin: 3px;
}
main {
padding: 100px;
}
h1 {
text-align: center;
}
h2,
.card {
margin-top: 20px;
}
.dark-theme .btn {
background-color: salmon;
border-color: salmon;
}<head>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
</head>
<div class="highlights row">
<section class="card col-md-6 col-lg-4">
<h3>Where does it come from?</h3>
<p>
orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.
</p>
<p>orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</p>
<a href="#" class="card__btn btn btn-info">when an unknown</a>
</section>
<section class="card col-md-6 col-lg-4">
<h3>Where does it come from?</h3>
<p>
orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.
</p>
<p>
orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.
</p>
<a href="#" class="card__btn btn btn-info">
when an unknown
</a>
</section>
<section class="card col-md-6 col-lg-4">
<h3>Where does it come from?</h3>
<p>
orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s
</p>
<p>orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</p>
<a href="#" class="card__btn btn btn-info">
when an unknown
</a>
</section>uj5u.com熱心網友回復：
首先，洗掉在 Bootstrap 類上設定的所有邊距。Bootstrap 旨在不需要添加間距/大小，因為它內置在類中。
我對你的結構做了很多修改。主要是嘗試按照 Bootstrap 的建議來構建元素。話雖如此，不要將每張卡片嵌套在部分中。相反，將它們嵌套在 div 中。標簽定義檔案中的<section>一個部分。& 如果我沒記錯的話，排成一行的三張卡片可以作為一個部分。我將所有三張卡片嵌套在一個部分中，并將其稱為highlights您已經擁有的類。
col的功能作為為某些內容保留空間的方法。因此，對于三卡設定，您應該使用col-4. 最大的 col 是col-12，它跨越了螢屏的整個寬度。12/4 = 3。然后您可以使用sm lg和md來獲得媒體螢屏上的回應能力。上面的示例使用預定義的網格類在小型、中型、大型和超大型設備上創建三個等寬的列。這些列以row父頁面為中心。
話雖如此，您的代碼未按預期作業的主要原因是額外的 CSS 邊距，并且cards應該嵌套在col's. 最后，前面提到的列大小的誤用。
我建議復習一下Bootstrap Grid System。如果您了解 Bootstrap，您可以構建一個完全回應式的網站，而幾乎不需要 CSS 知識。
.dark-theme body,
.dark-theme .card {
background-color: #121212;
color: #ffffffa6;
}
.dark-theme section.card {
background-color: #464646;
}
.card {
border-width: 0;
}
main {
padding: 100px;
}
h1 {
text-align: center;
}
.dark-theme .btn {
background-color: salmon;
border-color: salmon;
}<head>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
</head>
<section class="highlights">
<div class="row w-100 m-0 justify-content-center">
<div class="col-lg-4 col-md-4 col-sm-4">
<div class="card w-100">
<h3>Where does it come from?</h3>
<p>
orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.
</p>
<p>orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</p>
<a href="#" class="card__btn btn btn-info">when an unknown</a>
</div>
</div>
<div class="col-lg-4 col-md-4 col-sm-4">
<div class="card w-100">
<h3>Where does it come from?</h3>
<p>
orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.
</p>
<p>
orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.
</p>
<a href="#" class="card__btn btn btn-info">
when an unknown
</a>
</div>
</div>
<div class="col-lg-4 col-md-4 col-sm-4">
<div class="card w-100">
<h3>Where does it come from?</h3>
<p>
orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s
</p>
<p>orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</p>
<a href="#" class="card__btn btn btn-info">
when an unknown
</a>
</div>
</div>
</div>
</section>uj5u.com熱心網友回復：
在這里，您可以在 Bootstrap 網格系統中使用Gutters類。
間距是由水平填充創建的列內容之間的間隙。我們在每一列上設定 padding-right 和 padding-left，并使用負邊距在每行的開始和結束處偏移以對齊內容。
您可以根據需要使用g-1, g-2, g-3,g-4和g-5in row 。
.dark-theme body, .dark-theme .card {background-color: #121212; color: #ffffffa6;}
.dark-theme section.card {background-color: #464646;}
.card {border-width: 0;}
main {padding: 100px;}
h1 {text-align: center;}
.dark-theme .btn {background-color: salmon;border-color: salmon;}<head>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
</head>
<section class="highlights">
<div class="row justify-content-center g-1">
<div class="col-lg-4 col-md-4 col-sm-4">
<div class="card">
<h3>Where does it come from?</h3>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.</p>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</p>
<a href="#" class="card__btn btn btn-info">when an unknown</a>
</div>
</div>
<div class="col-lg-4 col-md-4 col-sm-4">
<div class="card">
<h3>Where does it come from?</h3>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.</p>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.</p><a href="#" class="card__btn btn btn-info">when an unknown</a>
</div>
</div>
<div class="col-lg-4 col-md-4 col-sm-4">
<div class="card">
<h3>Where does it come from?</h3>
<p>orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</p><p>orem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</p>
<a href="#" class="card__btn btn btn-info">when an unknown</a>
</div>
</div>
</div>
</section>轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/429608.html