如何在悬停时更改垂直居中的 SVG 外观？
How to change vertically centred SVGs appearance on hover?
我正在尝试让四个形状相互重叠，如图 1 所示。
我想让他们在悬停时改变颜色。
png 的问题在于它们实际上是方形的，所以它们也会在透明区域改变颜色，所以我转向了 SVG。
现在它们只有在我在内容上时才会改变颜色，但它们仍然是方形的，透明区域挡住了下面的形状。
最重要的是，我不知道如何以响应的方式水平和垂直对齐它们。
不胜感激
]1
#Fill-1 {
fill: red;
}
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fill: blue;
}
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text-align: center;
width: 100vw;
height: 100vh;
}
#shape1,
#shape2,
#shape3,
#shape4 {
position: absolute;
left: 0;
}
#shape1 {
transform: scale(0.5);
}
#shape2 {
transform: scale(0.3);
}
#shape3 {
transform: scale(0.15);
}
#shape4 {
transform: scale(0.05);
}
<body>
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</div>
</body>
如果可能，将您的悬停事件应用到 SVG 的 <path>，而不是整个 <g>。 <g> 只是一个容器元素，所以基本上是一个盒子。
在你的CSS中：
#Fill-1 path:hover {
fill: blue;
}
至于居中。这真的取决于你/你的标记的其余部分。一种选择是带有绝对定位子元素的弹性容器。类似于以下内容：
.main-wrapper {
position: absolute;
display: flex;
width: 100vw;
height: 100vh;
align-items: center;
justify-content: center;
top: 0;
bottom: 0;
right: 0;
left: 0;
}
svg {
top: 0;
left: 0;
right: 0;
bottom: 0;
height: 100%;
margin: 0 auto;
position: absolute;
transform-origin: center center;
}
注意：您不需要 select 所有 4 个 svg 的 ID。因为它们都可以在 CSS 中以 svg.
为目标
这里是 fiddle: https://jsfiddle.net/Lf6nchem/
使用 svg 符号更容易（也更短）：
#mySVG {
margin: 1em;
width: 90vw;
height: 90vh;
background-color: lightblue;
}
#shape1, #shape2,
#shape3, #shape4 { fill:red }
#shape1:hover, #shape2:hover,
#shape3:hover, #shape4:hover { fill:blue }
<svg id="mySVG" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 240 240">
<defs>
<symbol id="shapeRef" viewBox="0 0 240 240" >
<path
d="M212.61,105.86V52.17H186.12V25.24H159.19V0H25.25V25.87H0v188H26.34V239.1H133.56V212.76h53.18V185.84h52
.52v-80Zm-.23,53.49H160.25v26.88H106.56v26H52.87v-25.4h-26V52.87H52.28v-26H132.7v25.4h26.45V79.67h26.93v52
.72h26.3Z" />
<polygon fill="transparent"
points="212.38 132.39 212.38 159.35 160.25 159.35 160.25 186.23 106.56 186.23 106.56 212.22 52.87
212.22 52.87 186.82 26.84 186.82 26.84 52.87 52.28 52.87 52.28 26.88 132.7 26.88 132.7 52.28 159.15
52.28 159.15 79.67 186.08 79.67 186.08 132.39 212.38 132.39" />
</symbol>
</defs>
<use xlink:href="#shapeRef" x="50" y="50" width="120" height="120" id="shape1" />
<use xlink:href="#shapeRef" x="74" y="74" width="72" height="72" id="shape2" />
<use xlink:href="#shapeRef" x="92" y="92" width="36" height="36" id="shape3" />
<use xlink:href="#shapeRef" x="104" y="104" width="12" height="12" id="shape4" />
</svg>
感谢您的帮助！这里也是双色变色使用fill:currentColor
#mySVG {
margin: 1em;
width: 90vw;
height: 90vh;
background-color: green;
}
#shape1, #shape2,
#shape3, #shape4 { fill:red; color:white; }
#shape1:hover, #shape2:hover,
#shape3:hover, #shape4:hover { fill:blue; color:yellow; }
.fill{fill:currentColor;}
<svg id="mySVG" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 240 240">
<defs>
<symbol id="shapeRef" viewBox="0 0 240 240" >
<path
d="M212.61,105.86V52.17H186.12V25.24H159.19V0H25.25V25.87H0v188H26.34V239.1H133.56V212.76h53.18V185.84h52
.52v-80Zm-.23,53.49H160.25v26.88H106.56v26H52.87v-25.4h-26V52.87H52.28v-26H132.7v25.4h26.45V79.67h26.93v52
.72h26.3Z" />
<polygon class="fill"
points="212.38 132.39 212.38 159.35 160.25 159.35 160.25 186.23 106.56 186.23 106.56 212.22 52.87
212.22 52.87 186.82 26.84 186.82 26.84 52.87 52.28 52.87 52.28 26.88 132.7 26.88 132.7 52.28 159.15
52.28 159.15 79.67 186.08 79.67 186.08 132.39 212.38 132.39" />
</symbol>
</defs>
<use xlink:href="#shapeRef" x="50" y="50" width="120" height="120" id="shape1" />
<use xlink:href="#shapeRef" x="74" y="74" width="72" height="72" id="shape2" />
<use xlink:href="#shapeRef" x="92" y="92" width="36" height="36" id="shape3" />
<use xlink:href="#shapeRef" x="104" y="104" width="12" height="12" id="shape4" />
</svg>
我正在尝试让四个形状相互重叠，如图 1 所示。 我想让他们在悬停时改变颜色。
png 的问题在于它们实际上是方形的，所以它们也会在透明区域改变颜色，所以我转向了 SVG。 现在它们只有在我在内容上时才会改变颜色，但它们仍然是方形的，透明区域挡住了下面的形状。
最重要的是，我不知道如何以响应的方式水平和垂直对齐它们。
不胜感激
#Fill-1 {
fill: red;
}
#Fill-1:hover {
fill: blue;
}
.main-wrapper {
text-align: center;
width: 100vw;
height: 100vh;
}
#shape1,
#shape2,
#shape3,
#shape4 {
position: absolute;
left: 0;
}
#shape1 {
transform: scale(0.5);
}
#shape2 {
transform: scale(0.3);
}
#shape3 {
transform: scale(0.15);
}
#shape4 {
transform: scale(0.05);
}
<body>
<div class="main-wrapper">
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</div>
</body>
如果可能，将您的悬停事件应用到 SVG 的 <path>，而不是整个 <g>。 <g> 只是一个容器元素，所以基本上是一个盒子。
在你的CSS中：
#Fill-1 path:hover {
fill: blue;
}
至于居中。这真的取决于你/你的标记的其余部分。一种选择是带有绝对定位子元素的弹性容器。类似于以下内容：
.main-wrapper {
position: absolute;
display: flex;
width: 100vw;
height: 100vh;
align-items: center;
justify-content: center;
top: 0;
bottom: 0;
right: 0;
left: 0;
}
svg {
top: 0;
left: 0;
right: 0;
bottom: 0;
height: 100%;
margin: 0 auto;
position: absolute;
transform-origin: center center;
}
注意：您不需要 select 所有 4 个 svg 的 ID。因为它们都可以在 CSS 中以 svg.
这里是 fiddle: https://jsfiddle.net/Lf6nchem/
使用 svg 符号更容易（也更短）：
#mySVG {
margin: 1em;
width: 90vw;
height: 90vh;
background-color: lightblue;
}
#shape1, #shape2,
#shape3, #shape4 { fill:red }
#shape1:hover, #shape2:hover,
#shape3:hover, #shape4:hover { fill:blue }
<svg id="mySVG" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 240 240">
<defs>
<symbol id="shapeRef" viewBox="0 0 240 240" >
<path
d="M212.61,105.86V52.17H186.12V25.24H159.19V0H25.25V25.87H0v188H26.34V239.1H133.56V212.76h53.18V185.84h52
.52v-80Zm-.23,53.49H160.25v26.88H106.56v26H52.87v-25.4h-26V52.87H52.28v-26H132.7v25.4h26.45V79.67h26.93v52
.72h26.3Z" />
<polygon fill="transparent"
points="212.38 132.39 212.38 159.35 160.25 159.35 160.25 186.23 106.56 186.23 106.56 212.22 52.87
212.22 52.87 186.82 26.84 186.82 26.84 52.87 52.28 52.87 52.28 26.88 132.7 26.88 132.7 52.28 159.15
52.28 159.15 79.67 186.08 79.67 186.08 132.39 212.38 132.39" />
</symbol>
</defs>
<use xlink:href="#shapeRef" x="50" y="50" width="120" height="120" id="shape1" />
<use xlink:href="#shapeRef" x="74" y="74" width="72" height="72" id="shape2" />
<use xlink:href="#shapeRef" x="92" y="92" width="36" height="36" id="shape3" />
<use xlink:href="#shapeRef" x="104" y="104" width="12" height="12" id="shape4" />
</svg>
感谢您的帮助！这里也是双色变色使用fill:currentColor
#mySVG {
margin: 1em;
width: 90vw;
height: 90vh;
background-color: green;
}
#shape1, #shape2,
#shape3, #shape4 { fill:red; color:white; }
#shape1:hover, #shape2:hover,
#shape3:hover, #shape4:hover { fill:blue; color:yellow; }
.fill{fill:currentColor;}
<svg id="mySVG" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 240 240">
<defs>
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