使用背景颜色的多色圆形 div？

Question

我正在尝试在 CSS 中创建一个多色圆圈来模拟命运之轮，我试过使用线性渐变，但它只是应用颜色条运行垂直穿过圆形 div 而不是彩色区域，就好像你在切披萨一样，如果这有意义的话？

这是我试过的代码：

background: -moz-linear-gradient(left, red, red 20%, blue 20%, blue);

这导致：

但我希望它看起来更像这样？:

这在 CSS 中是否可行，或者我是否必须使用背景图片（我宁愿避免这种情况，因为它不像页面大小调整那样容易缩放等）？

Answer 1

考虑到旋转线性渐变，一种解决方案是使用多个背景层。我们也可以依赖伪元素和一些透明色。

然后只需调整伪元素的度数、颜色、颜色的不透明度和位置即可得到任何你想要的图表：

.circle {
  margin: 20px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: 
    linear-gradient(to right, rgba(255,0,0,0.5) 50%, yellow 0%), 
    linear-gradient(-110deg, black 50%, pink 0%);
  position: relative;
  overflow: hidden;
}

.circle:after,
.circle:before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}
.circle:after {
  background: linear-gradient(-45deg, rgba(255, 180, 180, 0.5) 50%, transparent 0%);
    bottom: 50%;
    left: 50%;
}

.circle:before {
  background: 
    linear-gradient(0deg, rgba(128, 169, 170, 0.5) 50%, transparent 0%), 
    linear-gradient(50deg, rgba(0, 169, 170, 1) 50%, transparent 0%);
}

<div class="circle"></div>

考虑到不同的配置，这里有更多示例

仅使用一个元素和多个渐变：

.circle {
  margin: 20px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(0deg, rgba(0, 255, 217, 0.4) 50%, transparent 0%), 
              linear-gradient(45deg, rgba(0, 128, 0, 0.4) 50%, transparent 0%), 
              linear-gradient(90deg, rgba(11, 255, 0, 0.4) 50%, transparent 0%), 
              linear-gradient(135deg, pink 50%, transparent 0%), 
              linear-gradient(180deg, brown 50%, transparent 0%),
              linear-gradient(225deg, yellow 50%, transparent 0%),
              linear-gradient(270deg, red 50%, transparent 0%);
  position: relative;
  overflow: hidden;
}

<div class="circle"></div>

使用多个元素和每个元素一个渐变：

.circle {
  margin: 20px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(to right, red 50%, yellow 0%);
  position: relative;
  overflow: hidden;
}

.circle:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(45deg, rgba(255, 180, 180, 0.5) 50%, transparent 0%);
}

.circle:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(125deg, rgba(128, 169, 170, 0.5) 50%, transparent 0%);
}

.circle-alt {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(to bottom, rgba(0, 250, 0, 0.5) 50%, rgba(0, 250, 255, 0.5) 0%);
  position: absolute;
  overflow: hidden;
}

<div class="circle">
  <div class="circle-alt"></div>
</div>

使用多个元素和每个元素多个渐变和仅纯色颜色（不改变background-position 喜欢@vals 的回答) :

.circle {
  margin: 20px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(to right, red 50%, transparent 0%), 
              linear-gradient(225deg, transparent 50%, blue 0%),
              linear-gradient(0deg, green 50%, transparent 0%),
              linear-gradient(-45deg, black 50%, transparent 0%),
              linear-gradient(-90deg, yellow 50%, transparent 0%);
  position: relative;
  overflow: hidden;
}

.circle:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 50%;
  right: 50%;
  background:linear-gradient(45deg,lightblue 50%, transparent 0%)
}
.circle:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  bottom: 0;
  right: 50%;
  background:linear-gradient(135deg, brown 50%, pink 0%);
}

<div class="circle"></div>

命运之轮（有旋转！）：

.circle {
  margin: 20px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(to right, #06b51d 50%, transparent 0%), 
              linear-gradient(60deg, #7e00ff 50%, transparent 0%), 
              linear-gradient(30deg, #ff00bd 50%, transparent 0%), 
              linear-gradient(0deg, #ff0000 50%, transparent 0%), 
              linear-gradient(-30deg, #ff4700 50%, transparent 0%), 
              linear-gradient(-60deg, #ffa500 50%, transparent 0%), 
              linear-gradient(-90deg, #ffff00 50%, transparent 0%);
  position: relative;
  overflow: hidden;
  animation: rotate 6s linear infinite;
}
.circle:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 50%;
  right: 50%;
  background: linear-gradient(210deg, transparent 64%, #09ffa5 0%),
              linear-gradient(240deg, transparent 37%, #34ff00 0%);
}

.circle:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  bottom: 0;
  right: 50%;
  background:linear-gradient(150deg, #00acff 37%, transparent 0%),
             linear-gradient(120deg, #0075ff 63%, #1200ff 0%);
}
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

<div class="circle"></div>

以不同方式获得相同结果的相关问题：

Answer 2

可以使用称为圆锥渐变的东西来完成。不幸的是，目前许多浏览器都不支持它们。 Lea Verou 创建了一个轻量级的 JS 插件，可以启用它们的用法：

https://leaverou.github.io/conic-gradient/

这可用于创建：

.elem {
width: 200px;
height: 200px;
background: conic-gradient(yellow 8.3%, greenyellow 0 16.6%, green 0 24.9%, darkgreen 0 33.2%, blue 0 41.5%, violet 0 49.8%, purple 0 58.1%, pink 0 66.4%, red 0 74.7%, orangered 0 83%, orange 0 91.3%, gold 0 100%);
border-radius: 50%
}

<script src="//cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
<script src="//cdn.rawgit.com/LeaVerou/conic-gradient/gh-pages/conic-gradient.js"></script>

<div class="elem"></div>

Answer 3

您可以使用边框来实现：

.chart {
  position: absolute;
  width: 0;
  height: 0;
  border-radius: 60px;
  -moz-border-radius: 60px;
  -webkit-border-radius: 60px;
}

#chart1 {
  border-right: 60px solid red;
  border-top: 60px solid transparent;
  border-left: 60px solid transparent;
  border-bottom: 60px solid transparent;
}

#chart2 {
  border-right: 60px solid transparent;
  border-top: 60px solid green;
  border-left: 60px solid transparent;
  border-bottom: 60px solid transparent;
}

#chart3 {
  border-right: 60px solid transparent;
  border-top: 60px solid transparent;
  border-left: 60px solid blue;
  border-bottom: 60px solid transparent;
}

#chart4 {
  border-right: 60px solid transparent;
  border-top: 60px solid transparent;
  border-left: 60px solid transparent;
  border-bottom: 60px solid yellow;
}

<div id="chart1" class="chart"></div>
<div id="chart2" class="chart"></div>
<div id="chart3" class="chart"></div>
<div id="chart4" class="chart"></div>

更新 1

.pizza {
width: 300px;
height: 300px;
border-radius: 100%;
background: linear-gradient(45deg, lightblue 50%, blue 0%), linear-gradient(-45deg, green 50%, darkgreen 0%), linear-gradient(-45deg, #E5E500 50%, yellow 0%), linear-gradient(45deg, tomato 50%, red 0%);
background-size: 50% 50%;
background-position: 0% 0%, 100% 0%, 0 100%, 100% 100%;
background-repeat: no-repeat;
}

<div class="pizza"></div>

Answer 4

您可以使用 css 实现此目的，但由于您需要 12 个切片，因此您将不得不使用更复杂的标记。如果您只想使用 4 或 8，使用多重背景的更简单的解决方案是可能的。

利用border-radius结合skew-trick绘制任意角度切片
使用多个包裹的切片，每个都旋转

我更喜欢的另一个想法：为其使用 svg 图形。

.container {
  position: absolute;
  left: 300px;
  top: 0;
}

.wrap {
  position: absolute;
  transform: rotate(30deg);
  transform-origin: 0% 100%;
}

.slice {
  height: 100px;
  width: 100px;
  overflow: hidden;
  transform-origin: 0% 100%;
  transform: skew(-60deg);
  position: relative;
}

.slice::before {
  height: inherit;
  width: inherit;
  position: absolute;
  content: "";
  border-radius: 0 100% 0 0;
  transform-origin: 0% 100%;
  transform: skew(60deg);
}

.wrap-0 {
  transform: rotate(0deg);
}

.wrap-0 .slice::before {
  background: hsl(0, 100%, 50%);
}

.wrap-1 {
  transform: rotate(30deg);
}

.wrap-1 .slice::before {
  background: hsl(30, 100%, 50%);
}

.wrap-2 {
  transform: rotate(60deg);
}

.wrap-2 .slice::before {
  background: hsl(60, 100%, 50%);
}

.wrap-3 {
  transform: rotate(90deg);
}

.wrap-3 .slice::before {
  background: hsl(90, 100%, 50%);
}

.wrap-4 {
  transform: rotate(120deg);
}

.wrap-4 .slice::before {
  background: hsl(120, 100%, 50%);
}

.wrap-5 {
  transform: rotate(150deg);
}

.wrap-5 .slice::before {
  background: hsl(150, 100%, 50%);
}

.wrap-6 {
  transform: rotate(180deg);
}

.wrap-6 .slice::before {
  background: hsl(180, 100%, 50%);
}

.wrap-7 {
  transform: rotate(210deg);
}

.wrap-7 .slice::before {
  background: hsl(210, 100%, 50%);
}

.wrap-8 {
  transform: rotate(240deg);
}

.wrap-8 .slice::before {
  background: hsl(240, 100%, 50%);
}

.wrap-9 {
  transform: rotate(270deg);
}

.wrap-9 .slice::before {
  background: hsl(270, 100%, 50%);
}

.wrap-10 {
  transform: rotate(300deg);
}

.wrap-10 .slice::before {
  background: hsl(300, 100%, 50%);
}

.wrap-11 {
  transform: rotate(330deg);
}

.wrap-11 .slice::before {
  background: hsl(330, 100%, 50%);
}

<div class="container">
  <div class="wrap wrap-0">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-1">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-2">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-3">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-4">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-5">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-6">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-7">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-8">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-9">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-10">
    <div class="slice"></div>
  </div>
  <div class="wrap wrap-11">
    <div class="slice"></div>
  </div>
</div>

Answer 5

CSS 为方便起见，技巧有一个 post about conic gradients that describes the "colorful umbrella" as an intermediate step, which looks perfect for your use. I've put it together into a Code Pen。

HTML:

<div class="wheel">
  <ul class="umbrella">
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
    <li class="color"></li>
  </ul>
</div>

SCSS:

@mixin circle($size) {
  content: "";
  position: absolute;
  border-radius: 50%;
  width: $size;
  height: $size;
  left: calc(50% - #{$size/2});
  top: calc(50% - #{$size/2});
}

$wheel: 15em;
.color {
  @include circle($wheel);
  clip: rect(0, $wheel, $wheel, #{$wheel/2});
  &:after {
    @include circle($wheel);
    background: blue;
    clip: rect(0, #{$wheel/2}, $wheel, 0);
    transform: rotate(45deg);
  }
}

.color, .color:nth-child(n+7):after {
  clip: rect(0, $wheel, $wheel, #{$wheel/2});
}
.color:after, .color:nth-child(n+7) {
  @include circle($wheel);
  clip: rect(0, #{$wheel/2}, $wheel, 0);
}

$colors: (#9ED110, #50B517, #179067, #476EAF, #9f49ac, #CC42A2, #FF3BA7, #FF5800, #FF8100, #FEAC00, #FFCC00, #EDE604);
@for $i from 0 to length($colors) {
  .color:nth-child(#{1+$i}):after {
    background-color: nth($colors, $i+1);
    @if $i < 6 {
      transform: rotate(#{30*(1+$i)}deg);
      z-index: #{length($colors)-$i};
    } @else {
      transform: rotate(#{-30+(30*(1+$i))}deg);
    }
  }
}

附带说明一下，如果背景图像的唯一问题是缩放问题，请记住 SVG 图像可以平滑缩放，因为它们基本上是矢量图形。（您必须手动绘制，但图像会缩放。）

Answer 6

扩展@Temani Afif 的回答，但更类似于您的要求：

.test {
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background-size: 50% 50%;
  background-repeat: no-repeat;
  background-image: linear-gradient(150deg, transparent 63%, tomato 63%),  
    linear-gradient(120deg, transparent 36.5%, red 36.5%),
    linear-gradient(fuchsia, fuchsia),
    linear-gradient(240deg, transparent 63%, green 63%),  
    linear-gradient(210deg, transparent 36.5%, lime 36.5%),
    linear-gradient(lightgreen, lightgreen),
    linear-gradient(330deg, transparent 63%, blue 63%),  
    linear-gradient(300deg, transparent 36.5%, lightblue 36.5%),
    linear-gradient(cyan, cyan),
    linear-gradient(60deg, transparent 63%, papayawhip 63%),  
    linear-gradient(30deg, transparent 36.5%, yellow 36.5%),
    linear-gradient(gold, gold);
  background-position: right top, right top, right top, 
        right bottom, right bottom, right bottom,
        left bottom, left bottom, left bottom,
        left top, left top, left top;
}

<div class="test"></div>

Answer 7

<div class="circle">
    <div class="table italy">
        <div class="table-cell green"></div>
        <div class="table-cell white"></div>
        <div class="table-cell red"></div>
    </div>
</div>
<div class="circle">
    <div class="table france">
        <div class="table-cell blue"></div>
        <div class="table-cell white"></div>
        <div class="table-cell red"></div>
    </div>
</div>
<div class="circle">
    <div class="table windows">
        <div class="table-cell red"></div>
        <div class="table-cell green"></div>
        <div class="table-cell yellow"></div>
        <div class="table-cell blue"></div>
    </div>
</div>
<div class="circle">
    <div class="table rainbow">
        <div class="table-cell red"></div>
        <div class="table-cell orange"></div>
        <div class="table-cell yellow"></div>
        <div class="table-cell green"></div>
        <div class="table-cell blue"></div>
        <div class="table-cell indigo"></div>
        <div class="table-cell violet"></div>
    </div>
</div>

您已经掌握了：一种创建多色圆圈的可靠方法。这种方法的优点在于，无论您有多少种颜色，它都适用于 IE。

使用背景颜色的多色圆形 div？

Multi-coloured circular div using background colours?

html

css

background

background-color