Question

我正在尝试创建一个按钮，该按钮在悬停时会根据要悬停在按钮的哪个部分上来创建渐变。灵感来自here

但是，我无法为标记复制它的功能。我试图将类包装在div周围（而不是button），但还是没有运气。

document.querySelector('.btn--hoverGradient').onmousemove = (e) => {

  // const x = e.pageX - e.target.offsetLeft
  // const y = e.pageY - e.target.offsetTop

  var rect = e.target.getBoundingClientRect();
  const x = e.clientX - rect.left;
  const y = e.clientY - rect.top;

  e.target.style.setProperty('--x', `${ x }px`)
  e.target.style.setProperty('--y', `${ y }px`)

}

a{
  text-decoration: none;
}
.btn--hoverGradient {
  position: relative;
  appearance: none;
  border: none;
  cursor: pointer;
  outline: none;
  overflow: hidden;
  border-radius: 100px;
}
.btn--hoverGradient a {
  position: relative;
  pointer-events: none;
}
.btn--hoverGradient::before {
  --size: 0;
  content: "";
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--size);
  height: var(--size);
  transform: translate(-50%, -50%);
  transition: width 0.2s ease, height 0.2s ease;
}
.btn--hoverGradient-darkGrey {
  background: radial-gradient(circle closest-side, #FFF, transparent);
}
.btn--hoverGradient:hover::before {
  --size: 400px;
}

.btn--core {
  border: 0;
  outline: 0;
  display: inline-block;
  white-space: nowrap;
  vertical-align: middle;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  text-align: center;
  user-select: none;
  border-radius: 0.25rem;
  padding: 11px 40px;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  font-size: 1.25em;
}
.btn--darkGrey {
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  color: #FFFFFF;
  background-color: #293440;
}

<div class="btn--hoverGradient btn--hoverGradient-darkGrey">
  <a href="#" class="btn--core btn--darkGrey">test</a>
</div>

我要去哪里错了？

Answer 1

在CSS中，

.btn--hoverGradient-darkGrey {
  background: radial-gradient(circle closest-side, #FFF, transparent);
}

应该是

.btn--hoverGradient-darkGrey:before {
  background: radial-gradient(circle closest-side, #4405f7, transparent);
}

您将其设置为白色，这就是您看不到效果的原因，其次您错过了'：before'

效果仍然与链接中的效果不同。

Answer 2

除了@Shoyeb提到的更改之外，请进行这些更改，并且应该可以正常工作。

首先，从“ btn--darkGrey”类中删除背景色，并将其放置在父部门的“ btn--hoverGradient”类中。

其次，输入“ position：relative;”在“ btn--core”核心类中。

document.querySelector('.btn--hoverGradient').onmousemove = (e) => {

  // const x = e.pageX - e.target.offsetLeft
  // const y = e.pageY - e.target.offsetTop

  var rect = e.target.getBoundingClientRect();
  const x = e.clientX - rect.left;
  const y = e.clientY - rect.top;

  e.target.style.setProperty('--x', `${ x }px`)
  e.target.style.setProperty('--y', `${ y }px`)

}

a{
  text-decoration: none;
}
.btn--hoverGradient {
  position: relative;
  appearance: none;
  border: none;
  cursor: pointer;
  outline: none;
  overflow: hidden;
  border-radius: 100px;
  width:400px;
  background-color: #293440;
}
.btn--hoverGradient a {
  position: relative;
  pointer-events: none;
}
.btn--hoverGradient::before {
  --size: 0;
  content: "";
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--size);
  height: var(--size);
  transform: translate(-50%, -50%);
  transition: width 0.2s ease, height 0.2s ease;
}
.btn--hoverGradient-darkGrey:before {
  background: radial-gradient(circle closest-side, #4405f7, transparent);
}
.btn--hoverGradient:hover::before {
  --size: 400px;
}

.btn--core {
  border: 0;
  outline: 0;
  display: inline-block;
  white-space: nowrap;
  vertical-align: middle;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  text-align: center;
  user-select: none;
  border-radius: 0.25rem;
  padding: 11px 40px;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  font-size: 1.25em;
  position:relative;
}
.btn--darkGrey {
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  color: #FFFFFF;
}

<div class="btn--hoverGradient btn--hoverGradient-darkGrey">
  <a href="#" class="btn--core btn--darkGrey">test</a>
</div>

边界半径对锚链悬停的影响

2 个答案: