如何在 Bootstrap 中指定方格网图片系统的长宽?
原文:https://www . geesforgeks . org/how-specify-length-width-of-square-grid-picture-in-system-bootstrap/
方形网格图片的长度和宽度可以通过传统的 CSS 方法来指定,这种方法可以通过样式标签或使用链接标签轻松地结合到我们的 HTML 代码中。说到 Bootstrap,它提供了一种更简单、更有效的方法来以更少的工作量执行相同的任务。要在 Bootstrap 中指定正方形网格图片的长度和宽度,您需要 Bootstrap 网格系统的基本概念。
Bootstrap 中有五个类可以改变长度和宽度,使用这个基本概念,您可以轻松地增加或减少网格列中任何图像的长度。
- 。上校
- 。S7-1200 可编程控制器
- 。col-md-
- 。col-lg-
- 。col-xl-
例 1: 这里你会看到三个网格宽度相同的图像,但是如果屏幕变小,那么第三个网格会改变行,变得比其他两个更宽。 T3】例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Grid System</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
</script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js">
</script>
<script src=
"https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js">
</script>
<style>
.col {
text-align: center;
border: 1px solid black;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col">
<img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20190710120839/download14.png" />
</div>
<div class="col">
<img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20190710121155/03.png">
</div>
<div class="col">
<img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20190710121314/images2.png">
</div>
</div>
</div>
</body>
</html>
输出:
示例 2: 在这里,您将看到包含图像的网格的三种不同宽度。 T3】例:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Grid System</title>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1">
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
</script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js">
</script>
<script src=
"https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js">
</script>
<style>
.col {
text-align: center;
border: 5px solid black;
}
div {
border: 1px solid black;
}
</style>
</head>
<body>
<div class="container">
<br>
<center>
<div class="row">
<div class="col-sm-3">
<img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20190710120839/download14.png" />
</div>
<div class="col-sm-6">
<img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20190710123529/GeeksforGeeksLogoHeader1.png">
</div>
<div class="col-sm-3">
<img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20190710121314/images2.png">
</div>
</div>
</center>
</div>
</body>
</html>
输出:
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