了解如何使用 CSS 创建模糊背景图片。
笔记:此示例不适用于 Edge 12、IE 11 或更早版本。
<div class="bg-image"></div>
<div class="bg-text">
<h1>I am John Doe</h1>
<p>And I'm a Photographer</p>
</div>
body, html {
height: 100%;
}
* {
box-sizing: border-box;
}
.bg-image {
/* The image used */
background-image: url("photographer.jpg");
/* Add the blur effect */
filter: blur(8px);
-webkit-filter: blur(8px);
/* Full height */
height: 100%;
/* Center and scale the image nicely */
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
/* Position text in the middle of the page/image */
.bg-text {
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0, 0.4); /* Black w/opacity/see-through */
color: white;
font-weight: bold;
border: 3px solid #f1f1f1;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 2;
width: 80%;
padding: 20px;
text-align: center;
}
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