今天我们要介绍100多个使用单个元素制作的CSS丝带。是的，只用到一个元素。
这可不是用旧的和过时的代码制作的CSS丝带，而是用现代CSS制作的，并对CSS变量进行了优化。没有幻数也没有固定尺寸。随你所愿可以将所有丝带放置于任何内容之中，通过调整变量即可轻松控制。
只需单击一下即可复制丝带的CSS代码，无论是经典的丝带，还是新式的、花哨的，总有一款让你眼前一亮。
你还在等什么？一起来看看吧。
多行丝带
当当当当，我可是我的最爱。创建适合多行文本的丝带是有挑战性的，但也难不倒我。
图片
代码示例1
.ribbon {
--r: .5em; /* control the cutout of the ribbon */
--c: #d81a14;
padding-inline: calc(.5em + var(--r));
text-align: center;
line-height: 2;
color: #fff;
background-image:
linear-gradient(var(--c) 70%,#0000 0),
linear-gradient(to bottom left,#0000 50%, color-mix(in srgb,var(--c),#000 40%) 51% 84%,#0000 85%);
background-position: 0 .15lh;
background-size: 100% 1lh;
clip-path: polygon(0 .15lh,100% .15lh,calc(100% - var(--r)) .5lh,100% .85lh,100% calc(100% - .15lh),0 calc(100% - .15lh),var(--r) calc(100% - .5lh),0 calc(100% - .85lh));
/* width: fit-content; you may need this in your real use case */
outline: none;
}
/* if you update the line-height, you need to also update the below */
@supports not (height:1lh) {
.ribbon {
background-position: 0 .3em;
background-size: 100% 2em;
clip-path: polygon(0 .3em,100% .3em,calc(100% - var(--r)) 1em,100% 1.7em,100% calc(100% - .3em),0 calc(100% - .3em),var(--r) calc(100% - 1em),0 calc(100% - 1.7em))
}
}
body {
margin: 0;
min-height: 100vh;
display: grid;
place-content: center;
place-items: center;
gap: 20px;
background: #f2f2f2;
}
/* due to precise values you have to choose good font-size values to avoid rounding issues and visual glitchs */
h1,h2,h3 {
font-family: sans-serif;
text-transform: uppercase;
font-size: 3rem;
margin: 0;
}
<h1 contenteditable>Click to edit</h1>
示例1演示如下
图片
编辑文本我们可以看到丝带将自动调整以适应内容。
代码示例2
.ribbon {
--r: .5em; /* control the cutout of the ribbon */
--a: 20deg; /* control the angle of the folded part */
--w: 5em; /* control the width of the folded part */
--c: #d81a14;
padding-inline: calc(1lh*tan(var(--a)/2) + .3em);
margin-block: calc(var(--w)*sin(var(--a)));
text-align: center;
color: #fff;
line-height: 2;
background-image:
linear-gradient(var(--c) 70%,#0000 0),
linear-gradient(to bottom left,#0000 50%, color-mix(in srgb,var(--c),#000 40%) 51% 84%,#0000 85%);
background-position: 0 .15lh;
background-size: 100% 1lh;
position: relative;
clip-path: polygon(
0 .15lh,
calc(100% - .7lh/sin(var(--a))) .15lh,
calc(100% - .7lh/sin(var(--a)) - 999px) calc(.15lh - 999px*tan(var(--a))),
100% -999px,
100% .15lh,
calc(100% - .7lh*tan(var(--a)/2)) .85lh,
100% 1lh,
100% calc(100% - .15lh),
calc(.7lh/sin(var(--a))) calc(100% - .15lh),
calc(.7lh/sin(var(--a)) + 999px) calc(100% - .15lh + 999px*tan(var(--a))),
0 999px,
0 calc(100% - .15lh),
calc(.7lh*tan(var(--a)/2)) calc(100% - .85lh),
0 calc(100% - 1lh)
);
/*width: fit-content; you may need this in your real use case */
outline: none;
}
.ribbon:before,
.ribbon:after {
content:"";
position: absolute;
height: .7lh;
width: var(--w);
background: color-mix(in srgb,var(--c),#000 40%);
rotate: var(--a);
}
.ribbon:before {
top: .15lh;
right: 0;
transform-origin: top right;
clip-path: polygon(0 0,100% 0,calc(100% - .7lh/tan(var(--a))) 100%,0 100%, var(--r) 50%);
}
.ribbon:after {
bottom: .15lh;
left: 0;
transform-origin: bottom left;
clip-path: polygon(calc(.7lh/tan(var(--a))) 0,100% 0,calc(100% - var(--r)) 50%,100% 100%,0 100%);
}
/* if you update the line-height, you need to also update the below */
@supports not (height:1lh) {
.ribbon {
padding-inline: calc(2em*tan(var(--a)/2) + .3em);
background-position: 0 .3em;
background-size: 100% 2em;
clip-path: polygon(
0 .3em,
calc(100% - 1.4em/sin(var(--a))) .3em,
calc(100% - 1.4em/sin(var(--a)) - 999px) calc(.3em - 999px*tan(var(--a))),
100% -999px,
100% .3em,
calc(100% - 1.4em*tan(var(--a)/2)) 1.7em,
100% 2em,
100% calc(100% - .3em),
calc(1.4em/sin(var(--a))) calc(100% - .3em),
calc(1.4em/sin(var(--a)) + 999px) calc(100% - .3em + 999px*tan(var(--a))),
0 999px,
0 calc(100% - .3em),
calc(1.4em*tan(var(--a)/2)) calc(100% - 1.7em),
0 calc(100% - 2em)
);
}
.ribbon:before,
.ribbon:after {
height: 1.4em;
}
.ribbon:before {
top: .3em;
clip-path: polygon(0 0,100% 0,calc(100% - 1.4em/tan(var(--a))) 100%,0 100%, var(--r) 50%);
}
.ribbon:after {
bottom: .3em;
clip-path: polygon(calc(1.4em/tan(var(--a))) 0,100% 0,calc(100% - var(--r)) 50%,100% 100%,0 100%);
}
}
body {
margin: 0;
min-height: 100vh;
display: grid;
place-content: center;
place-items: center;
background: #f2f2f2;
line-height: 2;
}
/* due to precise values you have to choose good font-size values to avoid rounding issues and visual glitches */
h1 {
font-family: sans-serif;
text-transform: uppercase;
font-size: 3.5rem;
margin: 0;
}
<h1 contenteditable="true">Click to edit</h1>
示例2演示如下
弯曲的丝带
将直线文本与弯曲的丝带结合起来并不容易，但成品效果也很有意思。
无限丝带
一直延伸的丝带？让我试着制作看看！这样的丝带可以向某个方向（顶部、底部、右侧、左侧）延伸直到屏幕的边缘。
因为是在没有伪元素的情况下构建的，所以不会产生任何溢出问题。请看下面的两个演示：
代码示例3
.ribbon {
--r: .8em; /* control the cutout */
--c: #bd1550;
padding-inline: 1lh calc(var(--r) + .25em);
border-image: conic-gradient(var(--c) 0 0) fill 0//9999px;
outline: 9999px solid #0004;
/* width: fit-content; you may need this in your real use case */
}
.top {
clip-path: polygon(1lh 100%,100% 100%,calc(100% - var(--r)) 50%,100% 0,1lh 0,1lh -9999px,0 -9999px,0 0);
}
.bottom {
clip-path: polygon(1lh 0,100% 0,calc(100% - var(--r)) 50%,100% 100%,1lh 100%,1lh 9999px,0 9999px,0 100%);
}
/* the 9999px is a very big value. Use what you want but make sure it's the same everywhere. If you use a small value you get another kind of ribbon without the infinite feature */
@supports not (height:1lh ) {
.ribbon {
padding-inline: 1.7em calc(var(--r) + .25em);
}
.top {
clip-path: polygon(1.7em 100%,100% 100%,calc(100% - var(--r)) 50%,100% 0,1.7em 0,1.7em -9999px,0 -9999px,0 0);
}
.bottom {
clip-path: polygon(1.7em 0,100% 0,calc(100% - var(--r)) 50%,100% 100%,1.7em 100%,1.7em 9999px,0 9999px,0 100%);
}
}
body {
margin: 0;
min-height: 100vh;
display: grid;
place-content: center;
place-items: center;
gap: 20px;
background: #f2f2f2;
}
h2 {
font-family: sans-serif;
text-transform: uppercase;
margin: 0;
font-size: 2.5rem;
line-height: 1.7;
color: #fff;
}
<h2 >An infinite Ribbon</h2> <h2 style="--c: #8A9B0F">An infinite Ribbon</h2>
示例3演示如下
图片
代码示例4
.ribbon {
--c: #C7F464;
border-image:
conic-gradient(from 45deg at calc(100% - 1lh),#0000 25%,var(--c) 0)
fill 0//0 0 0 100vw;
padding-right: 1.3lh;
line-height: 1.5em; /* control the height */
width: fit-content; /* you probably don't need this if your element is already shrink-to-fit*/
}
@supports not (padding: 1lh) { /* in case the lh unit is not available fallback to em */
.ribbon {
border-image:
conic-gradient(from 45deg at calc(100% - 1.5em) 50%,#0000 25%,var(--c) 0)
fill 0//0 0 0 100vw;
padding-right: 2em;
}
}
section {
/* center + max-width:800px + min-margin: 10px */
margin: 50px max(10px, 50% - 800px/2);
}
body {
font-family: system-ui, sans-serif;
background: #eee;
}
h1 {
font-size: 3rem;
}
p {
font-size: 1.5rem;
text-align:justify;
}
<section> <h1 class="ribbon">Main title</h1> <p>Dragée powder bear claw tiramisu pudding gummi bears wafer. Macaroon chocolate cake cake marzipan icing carrot cake macaroon sweet. Lemon drops </p> </section> <section> <h2 style="--c: #4ECDC4">Second title</h2> <p >Pie pastry macaroon candy tootsie roll jujubes pudding pie. Jelly-o chocolate cake pastry gingerbread brownie danish liquorice chocolate cake. Jelly beans donut cupcake danish croissant liquorice. Cotton candy brownie croissant pie toffee. Cotton candy chocolate cake gummi bears ice cream jelly fruitcake caramels. Shortbread ice cream bear claw gingerbread chocolate cake jelly-o cake caramels soufflé.</p> </section> <section> <h3 style="--c: #542437; color: #fff;">Small title</h3> <p>Pie pastry macaroon candy tootsie roll jujubes pudding pie. gingerbread brownie danish liquorice chocolate cake. Jelly beans donut cupcake danish croissant liquorice.</p> </section>
示例4演示如下
图片
原文地址：https://mp.weixin.qq.com/s/hkVqJKTlYQGgy3NRy4Ij5Q
