border-left-image 和 border-right-image 上的 CSS border-image 渐变与 border-color 混合

Question

border-top-color 是 #9b9c9d 而 border-bottom-color 是 #f6f9fc .渐变旨在在border-left 和border-right 上将顶部颜色过渡到底部颜色。

如何将 border-left-image 和 border-right-image 与 border-top-color 和 border 混合使用-底色?

HTML

<a class="button-style">Evil Whales</a>

CSS

.button-style
{
 background: linear-gradient(to bottom,
   rgba(129,232,117,1) 0%,
   rgba(129,232,117,1) 50%,
   rgba(62,179,48,1) 51%,
   rgba(62,179,48,1) 100%);

 border-top-color: #9b9c9d;

 border-left-image: linear-gradient(to bottom,
   rgba(155,156,157,1) 0%,
   rgba(246,249,252,1) 100%);

 border-bottom-color: #f6f9fc;

 border-right-image: linear-gradient(to bottom,
   rgba(155,156,157,1) 0%,
   rgba(246,249,252,1) 100%);

 border-style: solid;
}

Answer 1

你可以堆叠两个渐变并使用background-size、padding 和background-clip 来绘制边框:

.button-style {
  background: linear-gradient(to bottom, rgba(129, 232, 117, 1) 0%, rgba(129, 232, 117, 1) 50%, rgba(62, 179, 48, 1) 51%, rgba(62, 179, 48, 1) 100%) no-repeat
  /* use for background */
  , linear-gradient(to bottom, rgba(155, 156, 157, 1) 0%, rgba(246, 249, 252, 1) 100%)
  /* use for border */
  ;
  background-size: 100% 100%, auto auto;
  background-clip: content-box, border-box;
  padding: 3px;
}
html {
  padding: 3em;
  background: gray;

<a class="button-style">Evil Whales</a>