我已经成功添加了"background-image"到我的Razor Pages应用程序
现在，使用"滤镜:模糊(2px);"页眉和页脚模糊，但图像不模糊。
我已经做了几个小时了，看到了大量关于如何添加图像的线程，但找不到正确的方法(模糊)，或者看到其他人经历同样的行为。
我_Layout:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>@ViewData["Title"] - LifeCompanion</title>
<link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
<link rel="stylesheet" href="~/css/site.css" asp-append-version="true" />
<link rel="stylesheet" href="~/LifeCompanion.styles.css" asp-append-version="true" />
</head>
<body>
<header>
<nav class="navbar navbar-expand-sm navbar-toggleable-sm bg-transparent border-bottom box-shadow mb-3">
<div class="container">
<div class="navbar-collapse collapse d-sm-inline-flex justify-content-between">
<div class="dropdown">
<button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenu2" data-bs-toggle="dropdown" aria-expanded="false">
LifeCompanion
</button>
<ul class="dropdown-menu" aria-labelledby="dropdownMenu2">
<li>
<a class="dropdown-item" type="button" asp-page="/LActions/ImageManagement">
Images!
</a>
</li>
</ul>
</div>
<ul class="navbar-nav flex-grow-1">
<li class="nav-item">
<a class="nav-link text-light" asp-area="" asp-page="/Index">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-light" asp-area="" asp-page="/Privacy">Privacy</a>
</li>
</ul>
</div>
</div>
</nav>
</header>
<div class="container">
<main role="main" class="pb-3">
@RenderBody()
</main>
</div>
<footer class="border-top footer text-muted">
<div class="container">
© 2022 - LifeCompanion - <a asp-area="" asp-page="/Privacy">Privacy</a>
</div>
</footer>
<script src="~/lib/jquery/dist/jquery.min.js"></script>
<script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
<script src="~/js/site.js" asp-append-version="true"></script>
@await RenderSectionAsync("Scripts", required: false)
</body>
</html>我的CSS -使用site.css全局应用更改-是:
html {
font-size: 14px;
width: 100%;
height: 100%;
}
@media (min-width: 768px) {
html {
font-size: 16px;
}
}
html {
position: relative;
min-height: 100%;
}
body {
margin-bottom: 60px;
background: url(../img/background.jpg) no-repeat center center fixed;
background-size: cover;
width: 100%;
height: 100%;
color: white;
}一切顺利。
现在当添加到我的css:
body {
margin-bottom: 60px;
background: url(../img/background.jpg) no-repeat center center fixed;
background-size: cover;
width: 100%;
height: 100%;
color: white;
filter: blur(2px);
}页脚和页眉模糊，但不像预期的那样模糊背景图像。
将filter: blur(2px);替换为backdrop-filter: blur(2px);
filter将影响元素本身，backdrop-filter将影响元素边界框内元素下的元素。所以在你的项目中，你需要使用backdrop-filter。您可以点击此链接了解更多关于backdrop-filter的信息。