鼠标悬停按钮并同时触发 svg 圆圈

Question

我试图在悬停按钮时触发鼠标悬停更改以填充 svg 圆圈背景颜色。我做不到。

.position-orange-circle { position: absolute; margin-top: 100px; }
.position-btn { background-color: #ffbb11; height: 41px; width: 130px; border: none; border-radius: 8px; font-size: 1em; font-weight: 600; cursor: pointer; -webkit-transition-duration: 0.4s; transition-duration: 0.4s;}
.position-btn:hover svg circle { background-color: #231f20 !important; color: #ffbb11 !important; border: #9c7002 solid 1px; fill: #ffbb11;}

<svg height="150" width="150" class="position-orange-circle">
 <circle cx="60" cy="60" r="50" stroke="#ffbb11" stroke-width="5" fill="white"/>
</svg> 
      
<div class="btn-position">
 <button class="position-btn">Apply now</button>
</div>

Answer 1

根据@obsidian 的回答，应该是这样的：

function chbg(color) { 
  document.getElementById(id).style.backgroundColor = color;
  document.getElementById(id).style.backgroundColor.setAttribute("fill", "red")
}

如果更多 chbg(color, id, td, fc)

function chbg(color, id, td, fc) { 
  document.getElementById(id).style.backgroundColor = color;
  document.getElementById(id).style.textDecoration = td;
  document.getElementById(id).style.color = fc;
}

Test

Answer 2

您无法使用 CSS 向上导航 DOM。您只能访问未来的兄弟姐妹和 children.

文档：https://www.w3schools.com/css/css_combinators.asp

.position-orange-circle { position: absolute; margin-top: 100px; left: 15px; }
.position-btn { background-color: #ffbb11; height: 41px; width: 130px; border: none; border-radius: 8px; font-size: 1em; font-weight: 600; cursor: pointer; -webkit-transition-duration: 0.4s; transition-duration: 0.4s;}
.position-btn:hover ~ .position-orange-circle > circle{ background-color: #231f20 !important; color: #ffbb11 !important; border: #9c7002 solid 1px; fill: #ffbb11;}

<div class="btn-position">
<button class="position-btn">Apply now</button>
<svg height="150" width="150" class="position-orange-circle">
<circle cx="60" cy="60" r="50" stroke="#ffbb11" stroke-width="5" fill="white"/>
</svg> 
</div>

Answer 3

这可能对您有所帮助！

function chbg(color) {
    document.getElementById("whiteCircle").setAttribute("fill", color);
}

.position-orange-circle { position: absolute; margin-top: 100px; }
.position-btn { background-color: #ffbb11; height: 41px; width: 130px; border: none; border-radius: 8px; font-size: 1em; font-weight: 600; cursor: pointer; -webkit-transition-duration: 0.4s; transition-duration: 0.4s;}
.position-btn:hover svg circle { background-color: #231f20 !important; color: #ffbb11 !important; border: #9c7002 solid 1px; fill: #ffbb11;}

<svg height="150" width="150" class="position-orange-circle">
 <circle id="whiteCircle" cx="60" cy="60" r="50" stroke="#ffbb11" stroke-width="5" fill="white"/>
</svg> 
      
<div class="btn-position">
 <button class="position-btn" onmouseover="chbg('red')" onmouseout="chbg('white')">Apply now</button>
</div>

https://jsfiddle.net/mzb12pqs/

Answer 4

这是一个 CSS 唯一的解决方案。由于 SVG 嵌套在 BUTTON 内，因此该结构非常不寻常。它按照您的描述进行操作，但可能适合也可能不适合您的用例：

<style>
svg {
  position: absolute;
  stroke: #ffbb11;
  fill: none;
  pointer-events: none;
}

button:hover svg {
  fill: #ffbb11;
}
</style>

<button>
  Hover
  <svg width="200" viewBox="0 0 100 100">
    <circle cx="50" cy="50" r="40"/>
  </svg>
</button>

见https://codepen.io/MSCAU/pen/zJWaEa

鼠标悬停按钮并同时触发 svg 圆圈

Mouseover button and triggers svg circle same time

html

css

mouseover