CSS |结合背景图像与渐变叠加
原文:https://www . geesforgeks . org/CSS-combine-background-image-with-gradient-overlay/
CSS 渐变允许我们显示两种或多种颜色之间的平滑过渡。它们可以通过简单地组合背景图像 url 和渐变属性添加到背景图像的顶部。 语法:
-
对于背景图像顶部的线性渐变:
html element { background-image: linear-gradient(direction, color-stop1, color-stop2, ...), url('url'); } -
背景图像顶部的径向渐变:
html element { background-image: radial-gradient(direction, color-stop1, color-stop2, ...), url('url'); }
以下示例说明了上述方法: 示例 1: 具有线性渐变的背景图像。
<!DOCTYPE html>
<html lang="en">
<head>
<title>Background Image with Gradient</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">
<style>
.my_bg {
background-image:
linear-gradient(45deg, rgba(
145, 146, 122, 0.62), rgba(
217, 91, 132, 0.58)), url(
'https://media.geeksforgeeks.org/wp-content/cdn-uploads/20190710102234/download3.png');
width: 100%;
height: 280px;
text-align: center;
}
</style>
</head>
<body>
<div class="my_bg">
This is my background!
</div>
</body>
</html>
输出:
示例 2: 具有径向梯度的背景图像。
<!DOCTYPE html>
<html lang="en">
<head>
<title>Background Image with Gradient</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">
<style>
.my_bg {
background-image: radial-gradient(rgba(
145, 146, 122, 0.62), rgba(217, 91, 132, 0.58)), url(
'https://media.geeksforgeeks.org/wp-content/uploads/20200120152724/gfg_icon.png');
width: 100%;
height: 200px;
text-align: center;
}
</style>
</head>
<body>
<div class="my_bg">
This is my background!
</div>
</body>
</html>
输出:
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