目前我正在为一个社区开发一个网站,它变得有点困难,我有一个漂亮的粉红色>橙色渐变,下面有一张图像,不透明度
为 0.2,以显示两者.看起来像这样。
如您所见, Logo 也具有不透明度。我已经找到了一些关于 rgba
-color 的信息,但是没有用。
我该如何解决这个问题?我希望带边框的图像完全不透明。
body {
background-color: #f2f2f2;
color: #404040;
}
div.navbar {
height: 600px;
background: rgba(255, 255, 255, 0.7);
background-image: linear-gradient(25deg, #ec008c, #fc6767);
margin-top: -10px;
margin-left: -5px;
position: relative;
width: 105%;
}
img.logo {
position: absolute;
margin-top: 4%;
margin-left: 25%;
height: 40%;
padding: 25px;
border: 25px solid #f2f2f2;
border-radius: 50%;
}
div.image {
position: relative;
height: 100%;
opacity: 0.2;
background-image: url("img/slide1.jpg");
background-repeat: no-repeat;
background-size: cover;
}
div.nav {
position: absolute;
bottom: 0;
margin-left: 600px;
margin-bottom: 50px;
}
a.nav-item {
color: #f2f2f2;
font-weight: bold;
font-size: 25pt;
margin-right: 50px;
text-decoration: underline;
}
a.nav-item:hover,
a.nav-item .active {
text-decoration: overline underline;
}
<div class="navbar">
<img class="logo" src="img/logo.png">
<div class="image">
</div>
<div class="nav">
<a class="nav-item">Home</a>
<a class="nav-item">Twee</a>
</div>
</div>
最佳答案
对图像和渐变使用背景属性。然后从你的十六进制值的 rgba 等价物中获取你的渐变(Chrome 开发工具颜色选择器对此很有用)。
body {
margin: 0;
}
div.navbar {
height: 100vh;
/*
IMPORTANT BITS:
- ADDED image and gradient to navbar background and
- REMOVED opacity
THE REST:
The rest was just to make the demo look better/simpler
*/
background:
linear-gradient(25deg, rgba(236, 0, 140, 0.7), rgba(252, 103, 103, 0.7)),
url(http://placeimg.com/1000/600/arch) no-repeat center;
background-size: cover;
position: relative;
}
.logo-wrapper {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
width: 25%;
height: 0;
padding-top: 25%;
border:25px solid #f2f2f2;
border-radius: 50%;
overflow: hidden;
}
.logo {
width: 90%;
border-radius: 50%;
position: absolute;
top: 5%;
left: 5%;
}
<html>
<head>
<link rel="stylesheet" href="css.css">
</head>
<body>
<div class="navbar">
<div class="logo-wrapper">
<img class="logo" src="http://placeimg.com/200/200/tech/grayscale">
</div>
</div>
</body>
</html>
关于html - child 如何覆盖 parent 的不透明度?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54934981/