我希望将灯箱放在背景图像的顶部，以便可以通过灯箱看到背景图像。我试图进入图片（顶部）而不是在它之外，但到目前为止没有任何效果。我想把这个标题和这些文字放在白框中，背景图像看到槽（不透明度大约为 0.5）。 <h2 style="color: black" align="center">Food is essential part of our well-being</h2>
<p>Our expertise </p>这是引导程序/HTML。<!doctype html><html> <head> <!-- Required meta tags --> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <!-- Bootstrap CSS --> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous"><link rel="stylesheet" href="style.css"> <title>Hello, world!</title> </head> <body> <nav class="navbar navbar-expand-lg navbar-light bg-light"> <a class="instagram" href="#"> <img src="https://cdn3.iconfinder.com/data/icons/picons-social/57/38-instagram-256.png" width="35" height="35" alt=""></a> <a class="facebook" href="#"> <img src="https://cdn3.iconfinder.com/data/icons/wpzoom-developer-icon-set/500/01-256.png" width="35" height="35" alt=""></a> <a class="twitter" href="#"> <img src="https://cdn2.iconfinder.com/data/icons/font-awesome/1792/twitter-square-256.png" width="35" height="35" alt=""></a> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button>
2 回答
慕运维8079593
TA贡献1876条经验 获得超5个赞
您可以使用display: flexon.container将元素放置.container在顶部。我添加了一些注释来最小化您的代码。一探究竟！
.container {
background-image: url("https://cdn.pixabay.com/photo/2015/08/25/03/51/toner-906142__480.jpg");
/* Add the background image like this */
height: 500px;
/* Give the background image the correct height */
background-repeat: no-repeat;
background-position: center;
background-size: cover;
display: flex;
/* Places content inside on top */
justify-content: center;
/* Center horizontally */
align-items: center;
/* Center vertically */
}
.transbox {
padding: 30px;
background-color: rgba(255, 255, 255, 0.5);
/* Opacity can be given to background with rgba*/
border: 1px solid black;
height: 100px;
}
<div class="container" href="service">
<div class="transbox">
<h2>
Food is essential part of our well-being
</h2>
<p>Our expertise </p>
</div>
</div>
泛舟湖上清波郎朗
TA贡献1818条经验 获得超3个赞
只需将此 CSS 添加到您的.transbox样式中即可
https://jsfiddle.net/rjaw5nvx/
position: absolute; top: 50%; transform: translateY(-50%);
您还可以使用 Flexbox 使框垂直和水平居中，但这有点复杂。
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