css - 带有css3渐变的旭日效果

Question

我已经四处寻找并尝试了几天，但我似乎无法 100% 正确...我正在尝试使用 css3 渐变实现以下效果:

我得到的最接近的是 DEMO :

html {
  background:
    linear-gradient(80deg, transparent 50%, #ddd 50%, #ddd),
    linear-gradient(90deg, transparent 50%, #ddd 50%, #ddd),
    linear-gradient(82deg, transparent 50%, #eee 50%, #eee),
    linear-gradient(67deg, transparent 50%, #ddd 50%, #ddd),
    linear-gradient(52deg, transparent 50%, #eee 50%, #eee),
    linear-gradient(37deg, transparent 50%, #ddd 50%, #ddd),
    linear-gradient(22deg, transparent 50%, #eee 50%, #eee),
    linear-gradient(7deg, transparent 50%, #ddd 50%, #ddd),
    linear-gradient(-8deg, transparent 50%, #eee 50%, #eee),
    linear-gradient(-23deg, transparent 50%, #ddd 50%, #ddd),
    linear-gradient(-38deg, transparent 50%, #eee 50%, #eee),
    linear-gradient(-53deg, transparent 50%, #ddd 50%, #ddd),
    linear-gradient(-68deg, transparent 50%, #eee 50%, #eee),
    linear-gradient(-83deg, transparent 50%, #ddd 50%, #ddd);
  background-position: center -100%;
  background-color: #eee;
  background-size: 100% 200%;
  min-height: 100%;
}

我会继续尝试。但是非常感谢任何帮助。

更新:

必须有更好/可重用的方法来做到这一点...研究 scss 解决方案，这是我目前所拥有的:

.sunburst {
  @for $ray from 1 through 26 {
    $color: #eee;
    $degree: 7;
    @if $ray%2 == 0 {
      $color: #ddd;
    }
    background:linear-gradient($degree+deg, transparent 50%, $color 50%, $color),
  }
}

现在它只是它背后的实际数学，我试图弄清楚...试图从 pow.js 中窃取逻辑，但如果你像我一样数学不好的话，有点困难......

Answer 1

您可以使用 :before 和 :after :pseudo-elements 来获得这种效果。

html, body {
  width: 100%;
  height: 100%;
  margin: 0;
}
#grad {
  position: relative;
  width: 100%;
  height: 100%;
}
#grad:after, #grad:before {
  content: '';
  position: absolute;
  background: linear-gradient(90deg, transparent 50%, black 50%, black), linear-gradient(82deg, transparent 50%, #12E0DB 50%, #12E0DB), linear-gradient(67deg, transparent 50%, #000000 50%, #000000), linear-gradient(52deg, transparent 50%, #12E0DB 50%, #12E0DB), linear-gradient(37deg, transparent 50%, #000000 50%, #000000), linear-gradient(22deg, transparent 50%, #12E0DB 50%, #12E0DB), linear-gradient(7deg, transparent 50%, #000000 50%, #000000), linear-gradient(-8deg, transparent 50%, #12E0DB 50%, #12E0DB), linear-gradient(-23deg, transparent 50%, #000000 50%, #000000), linear-gradient(-38deg, transparent 50%, #12E0DB 50%, #12E0DB), linear-gradient(-53deg, transparent 50%, #000000 50%, #000000), linear-gradient(-68deg, transparent 50%, #12E0DB 50%, #12E0DB), linear-gradient(-83deg, transparent 50%, #000000 50%, #000000), linear-gradient(-90deg, transparent 50%, #12E0DB 50%, #12E0DB);
  background-position: 0% 0%;
  background-size: 200% 100%;
  height: 100%;
  width: 50%;
}
#grad:before {
  left: 50%;
  transform: rotate(180deg);
}

<div id="grad"></div>