新答案
根据更新,您可以执行以下操作。这个想法是考虑你的标志的倒置版本,你使透明部分不透明(和不透明部分透明),然后应用多个蒙版层来获得你想要的。
我从旧答案中保留了相同的想法。我正在考虑覆盖中心的徽标:
.overlay {
--h:200px; /* height of the logo*/
--w:200px; /* width of the logo */
height:300px;
background:radial-gradient(farthest-side,black 50%,transparent 52%) 0 0/8px 8px;
-webkit-mask:
linear-gradient(#fff,#fff) top /100% calc(50% - var(--h)/2),
linear-gradient(#fff,#fff) bottom/100% calc(50% - var(--h)/2),
linear-gradient(#fff,#fff) left /calc(50.1% - var(--w)/2) 100%,
linear-gradient(#fff,#fff) right /calc(50.1% - var(--w)/2) 100%,
url(https://i.ibb.co/1zDbtJw/logo.png) center/var(--w) var(--h);
mask:
linear-gradient(#fff,#fff) top /100% calc(50% - var(--h)/2),
linear-gradient(#fff,#fff) bottom/100% calc(50% - var(--h)/2),
linear-gradient(#fff,#fff) left /calc(50% - var(--w)/2) 100%,
linear-gradient(#fff,#fff) right /calc(50% - var(--w)/2) 100%,
url(https://i.ibb.co/1zDbtJw/logo.png) center/var(--w) var(--h);
-webkit-mask-repeat:no-repeat;
mask-repeat:no-repeat;
}
body {
background:url(https://i.picsum.photos/id/44/800/800.jpg) center/cover;
}
<div class="overlay"></div>
这是一个相关的问题来解释如何获得新版本的标志:https ://graphicdesign.stackexchange.com/q/63635
我们也可以玩mask-composite
并保留原来的标志,调整和改变位置会更容易。注意遮罩层的顺序,这与第一个示例不同:
.overlay {
height:300px;
background:radial-gradient(farthest-side,black 50%,transparent 52%) 0 0/8px 8px;
-webkit-mask:
linear-gradient(#fff,#fff),
url(https://i.ibb.co/cKBT5WQ/logo.png) center/200px 200px;
-webkit-mask-repeat:no-repeat;
-webkit-mask-composite:source-out;
mask:
linear-gradient(#fff,#fff),
url(https://i.ibb.co/cKBT5WQ/logo.png) center/200px 200px;
mask-repeat:no-repeat;
mask-composite:exclude;
}
body {
background:url(https://i.picsum.photos/id/44/800/800.jpg) center/cover;
}
<div class="overlay"></div>
旧答案
我会用纯 CSS 构建它而不需要图像:
.overlay {
height:300px;
/* the stripes */
background:repeating-linear-gradient(to right,blue 0 10px,transparent 10px 20px);
/* the mask*/
-webkit-mask:
linear-gradient(#fff,#fff) top /100% 50px,
linear-gradient(#fff,#fff) bottom/100% 50px,
linear-gradient( 235deg,transparent 10%,#fff 9%) calc(50% - 600px) 50%/1200px calc(100% - 100px),
linear-gradient(-235deg,transparent 10%,#fff 9%) calc(50% + 600px) 50%/1200px calc(100% - 100px);
-webkit-mask-repeat:no-repeat;
mask:
linear-gradient(#fff,#fff) top /100% 50px,
linear-gradient(#fff,#fff) bottom/100% 50px,
linear-gradient( 235deg,transparent 10%,#fff 9%) calc(50% - 600px) 50%/1200px calc(100% - 100px),
linear-gradient(-235deg,transparent 10%,#fff 9%) calc(50% + 600px) 50%/1200px calc(100% - 100px);
mask-repeat:no-repeat;
}
body {
background:url(https://i.picsum.photos/id/44/800/800.jpg) center/cover;
}
<div class="overlay"></div>
要理解这里的难题是用于具有不同颜色的蒙版的渐变:
.overlay {
height:300px;
background:
linear-gradient(blue,blue) top /100% 50px,
linear-gradient(red,red) bottom/100% 50px,
linear-gradient( 235deg,transparent 10%,green 9%)
calc(50% - 600px) 50% / 1200px calc(100% - 100px),
/* ^ this half of this ^ */
linear-gradient(-235deg,transparent 10%,purple 9%)
calc(50% + 600px) 50%/1200px calc(100% - 100px);
background-repeat:no-repeat;
}
body {
background:url(https://i.picsum.photos/id/44/800/800.jpg) center/cover;
}
<div class="overlay"></div>
这是另一种语法,我将使用 CSS 变量轻松控制三角形:
.overlay {
--h:200px; /* height of the triangle*/
--w:200px; /* width of the triangle */
height:300px;
/* the stripes */
background:repeating-linear-gradient(to right,blue 0 10px,transparent 10px 20px);
/* the mask*/
-webkit-mask:
linear-gradient(#fff,#fff) top /100% calc(50% - var(--h)/2),
linear-gradient(#fff,#fff) bottom/100% calc(50% - var(--h)/2),
linear-gradient(#fff,#fff) left /calc(50% - var(--w)/2) 100%,
linear-gradient(#fff,#fff) right /calc(50% - var(--w)/2) 100%,
linear-gradient(to top right,#fff 49%,transparent 50%) calc(50% - var(--w)/4) 50%/calc(var(--w)/2) var(--h),
linear-gradient(to top left ,#fff 49%,transparent 50%) calc(50% + var(--w)/4) 50%/calc(var(--w)/2) var(--h);
-webkit-mask-repeat:no-repeat;
mask:
linear-gradient(#fff,#fff) top /100% calc(50% - var(--h)/2),
linear-gradient(#fff,#fff) bottom/100% calc(50% - var(--h)/2),
linear-gradient(#fff,#fff) left /calc(50% - var(--w)/2) 100%,
linear-gradient(#fff,#fff) right /calc(50% - var(--w)/2) 100%,
linear-gradient(to top right,#fff 49%,transparent 50%) calc(50% - var(--w)/4) 50%/calc(var(--w)/2) var(--h),
linear-gradient(to top left ,#fff 49%,transparent 50%) calc(50% + var(--w)/4) 50%/calc(var(--w)/2) var(--h);
mask-repeat:no-repeat;
}
body {
background:url(https://i.picsum.photos/id/44/800/800.jpg) center/cover;
}
<div class="overlay"></div>