Box-shadow 正在从图像中截断答案

【问题标题】：Box-shadow is being cut off of the imageBox-shadow 正在从图像中截断
【发布时间】：2021-07-18 02:39:16
【问题描述】：

图像应该是这样的。

box-shadow 添加到代码中： Image

相反，它看起来像这样，我不知道为什么以及如何解决它。 Image

您可以看到盒子阴影在图像的所有 4 个面上都被切断了。

如何修复它以使图像不会被截断？

.curtain {
  width: 550px;
  height: 250px;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  background: #000000;
  box-sizing: border-box;
}

.jacketa {
  position: absolute;
  width: 180px;
  height: 180px;
  cursor: pointer;
  border-radius: 50%;
  background: #130e85;
  border: 3px solid #f91f6e;
  box-sizing: border-box;
  box-shadow: 0 0 20px 2px #f9066bf7;
   
}
.jacketa .coversvg {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  cursor: pointer;
}
.jacketa .coversvg {
  width: 70px;
  height: 75.4px;
  fill: none;
  stroke-width: 4px;
  stroke-miterlimit: 10;
}

.jacketa .coversvg .back {
  stroke: #000;
  opacity: 0.15;
}

.jacketa .coversvg .front {
  stroke: #08f9ff;
  stroke-dasharray: 150;
  stroke-dashoffset: 1500;
  animation: draw 20s infinite linear, flicker-1 2s linear 2s infinite both;
}

@keyframes draw {
  100% {
    stroke-dashoffset: 0;
  }

  100% {
    stroke-dashoffset: 0;
  }
}

@keyframes flicker-1 {
  0%,
  100% {
    opacity: 1;
  }

  41.99% {
    opacity: 1;
  }

  42% {
    opacity: 0;
  }

  43% {
    opacity: 0;
  }

  43.01% {
    opacity: 1;
  }

  47.99% {
    opacity: 1;
  }

  48% {
    opacity: 0;
  }

  49% {
    opacity: 0;
  }

  49.01% {
    opacity: 1;
  }
}

.split-wrap {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 180px;
  height: 180px;
  margin: auto;
  border-radius: 50%;
  transition: 0.5s ease;
}

.j1 {
  position: absolute;
  left: 0;
  top: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  transition: 5s ease;
}
.j2 {
  position: absolute;
  left: 50%;
  top: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  transition: 5s ease;
}
.j2 .jacketa {
  right: 0;
  left: auto;
}
.curtain:hover .j1 {
  transform: translateX(-500%);
}
.curtain:hover .j2 {
  transform: translateX(500%);
}

<div class="curtain">

  <div class="split-wrap">
    <div class="j1">
      <div class="jacketa" title="[ Enjoy The Music ]">
        <svg class="coversvg" width="70" height="75.4" viewBox="0 0 47.96 51.66">
          <title>[ Enjoy The Music ]</title>
          <path class="back" d="M2,25.83V4.11A2.11,2.11,0,0,1,5.13,2.27L44.88,24.45a2.11,2.11,0,0,1,0,3.7L5.1,49.41A2.11,2.11,0,0,1,2,47.55V25.83" />
          <path class="front" d="M2,25.83V4.11A2.11,2.11,0,0,1,5.13,2.27L44.88,24.45a2.11,2.11,0,0,1,0,3.7L5.1,49.41A2.11,2.11,0,0,1,2,47.55V25.83" />
        </svg>
      </div>
    </div>
    <div class="j2">
      <div class="jacketa" title="[ Enjoy The Music ]">
        <svg class="coversvg" width="70" height="75.4" viewBox="0 0 47.96 51.66">
          <title>[ Enjoy The Music ]</title>
          <path class="back" d="M2,25.83V4.11A2.11,2.11,0,0,1,5.13,2.27L44.88,24.45a2.11,2.11,0,0,1,0,3.7L5.1,49.41A2.11,2.11,0,0,1,2,47.55V25.83" />
          <path class="front" d="M2,25.83V4.11A2.11,2.11,0,0,1,5.13,2.27L44.88,24.45a2.11,2.11,0,0,1,0,3.7L5.1,49.41A2.11,2.11,0,0,1,2,47.55V25.83" />
        </svg>
      </div>
    </div>
  </div>
</div>

【问题讨论】：

标签： html css css-transitions

【解决方案1】：

由于溢出，bow-shadow 被截断（已经说过），您还可以使用变换轻松将阴影保持在可见区域内。

首先增加隐藏的溢出区域，然后减少里面的内容。再小就不会被剪裁了。

带有简短固定的想法示例：transform:scale(1.1)VS transform:scale(0.9) 以保持与初始布局大小的接近比例。

.curtain {
  width: 550px;
  height: 250px;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  background: #000000;
  box-sizing: border-box;
}
.split-wrap{
transform:scale(1.1);
}
.jacketa {
  position: absolute;
  width: 180px;
  height: 180px;
  cursor: pointer;
  border-radius: 50%;
  background: #130e85;
  border: 3px solid #f91f6e;
  box-sizing: border-box;
  box-shadow: 0 0 20px 2px #f9066bf7;
  transform:scale(0.9);
   
}
.jacketa .coversvg {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  cursor: pointer;
}
.jacketa .coversvg {
  width: 70px;
  height: 75.4px;
  fill: none;
  stroke-width: 4px;
  stroke-miterlimit: 10;
}

.jacketa .coversvg .back {
  stroke: #000;
  opacity: 0.15;
}

.jacketa .coversvg .front {
  stroke: #08f9ff;
  stroke-dasharray: 150;
  stroke-dashoffset: 1500;
  animation: draw 20s infinite linear, flicker-1 2s linear 2s infinite both;
}

@keyframes draw {
  100% {
    stroke-dashoffset: 0;
  }

  100% {
    stroke-dashoffset: 0;
  }
}

@keyframes flicker-1 {
  0%,
  100% {
    opacity: 1;
  }

  41.99% {
    opacity: 1;
  }

  42% {
    opacity: 0;
  }

  43% {
    opacity: 0;
  }

  43.01% {
    opacity: 1;
  }

  47.99% {
    opacity: 1;
  }

  48% {
    opacity: 0;
  }

  49% {
    opacity: 0;
  }

  49.01% {
    opacity: 1;
  }
}

.split-wrap {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 180px;
  height: 180px;
  margin: auto;
  border-radius: 50%;
  transition: 0.5s ease;
}

.j1 {
  position: absolute;
  left: 0;
  top: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  transition: 5s ease;
}
.j2 {
  position: absolute;
  left: 50%;
  top: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  transition: 5s ease;
}
.j2 .jacketa {
  right: 0;
  left: auto;
}
.curtain:hover .j1 {
  transform: translateX(-500%);
}
.curtain:hover .j2 {
  transform: translateX(500%);
}

<div class="curtain">

  <div class="split-wrap">
    <div class="j1">
      <div class="jacketa" title="[ Enjoy The Music ]">
        <svg class="coversvg" width="70" height="75.4" viewBox="0 0 47.96 51.66">
          <title>[ Enjoy The Music ]</title>
          <path class="back" d="M2,25.83V4.11A2.11,2.11,0,0,1,5.13,2.27L44.88,24.45a2.11,2.11,0,0,1,0,3.7L5.1,49.41A2.11,2.11,0,0,1,2,47.55V25.83" />
          <path class="front" d="M2,25.83V4.11A2.11,2.11,0,0,1,5.13,2.27L44.88,24.45a2.11,2.11,0,0,1,0,3.7L5.1,49.41A2.11,2.11,0,0,1,2,47.55V25.83" />
        </svg>
      </div>
    </div>
    <div class="j2">
      <div class="jacketa" title="[ Enjoy The Music ]">
        <svg class="coversvg" width="70" height="75.4" viewBox="0 0 47.96 51.66">
          <title>[ Enjoy The Music ]</title>
          <path class="back" d="M2,25.83V4.11A2.11,2.11,0,0,1,5.13,2.27L44.88,24.45a2.11,2.11,0,0,1,0,3.7L5.1,49.41A2.11,2.11,0,0,1,2,47.55V25.83" />
          <path class="front" d="M2,25.83V4.11A2.11,2.11,0,0,1,5.13,2.27L44.88,24.45a2.11,2.11,0,0,1,0,3.7L5.1,49.41A2.11,2.11,0,0,1,2,47.55V25.83" />
        </svg>
      </div>
    </div>
  </div>
</div>

【讨论】：

我怎样才能把尺寸变成180，原来是这样的？有可能吗？
@coding4532 ，算一下 :) 缩小 0.9 大约是放大 1.1111 需要回到 1
你是怎么算的？是什么给了你 1.1111？所以我知道该怎么做。我在计算什么？
@coding4532 缩小 10%：180 x 0.9 = 162 (10% = 18)。反过来是：180 / 162= 1.111.. 和 1.1111... x 162 = 180
是的，同样的方法：180 x 0.8 = ... 然后使用你得到的这些数字

【解决方案2】：

发生这种情况是因为您将 overflow: hidden 分配给了 .j1 和 .j2，将其更改为 overflow: visible 将解决 box-shadow 问题，但会弄乱您的窗帘动画。

或者，您可以使.j1 和.j2 更大，但要使用填充，这样box-shadow 就不会重叠。

【讨论】：