将SVG置于DIV内部 [英] Center an SVG inside a DIV

问题描述

我有一个带有SVG的div:

I have a div with an SVG inside it:

.svg * {
  display: block;
  margin: 0 auto;
  fill: red;
}

<div class="foo ball design">
  <svg class="svg pen" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="48px" height="48px" viewBox="0 0 48 48">
    <g>
      <path data-color="color-2" fill="#136f71" d="M5.586,15L15,5.586l-3.293-3.293c-0.391-0.391-1.023-0.391-1.414,0l-8,8 c-0.391,0.391-0.391,1.023,0,1.414L5.586,15z"></path>
      <rect data-color="color-2" x="7.636" y="10.636" transform="matrix(0.7071 -0.7071 0.7071 0.7071 -5.9203 14.293)" fill="#136f71" width="13.313" height="7.314"></rect>
      <rect data-color="color-2" x="28.05" y="29.636" transform="matrix(0.7071 -0.7071 0.7071 0.7071 -14.3761 34.707)" fill="#136f71" width="13.313" height="10.143"></rect>
      <path data-color="color-2" fill="#136f71" d="M44.085,35.329l-8.757,8.757l9.475,1.895C44.869,45.994,44.935,46,45,46 c0.263,0,0.518-0.104,0.707-0.293c0.236-0.236,0.339-0.575,0.273-0.903L44.085,35.329z"></path>
      <path fill="#136f71" d="M45.707,12.293l-10-10c-0.391-0.391-1.023-0.391-1.414,0l-5.291,5.291l2.706,2.709 c0.39,0.391,0.39,1.024-0.001,1.414C31.511,11.902,31.256,12,31,12c-0.256,0-0.512-0.098-0.708-0.293l-2.705-2.708l-3.584,3.584 l1.711,1.711c0.391,0.391,0.391,1.023,0,1.414C25.52,15.902,25.264,16,25.008,16s-0.512-0.098-0.707-0.293l-1.711-1.711 l-3.586,3.586l3.711,3.711c0.391,0.391,0.391,1.023,0,1.414C22.52,22.902,22.264,23,22.008,23s-0.512-0.098-0.707-0.293 l-3.711-3.711l-3.586,3.586l1.711,1.711c0.391,0.391,0.391,1.023,0,1.414C15.52,25.902,15.264,26,15.008,26 s-0.512-0.098-0.707-0.293l-1.711-1.711l-3.586,3.586l3.711,3.711c0.391,0.391,0.391,1.023,0,1.414 C12.52,32.902,12.264,33,12.008,33s-0.512-0.098-0.707-0.293L7.59,28.996l-5.297,5.297c-0.391,0.391-0.391,1.023,0,1.414l10,10 C12.488,45.902,12.744,46,13,46s0.512-0.098,0.707-0.293l32-32C46.098,13.316,46.098,12.684,45.707,12.293z M38,16 c-1.105,0-2-0.895-2-2c0-1.105,0.895-2,2-2s2,0.895,2,2C40,15.105,39.105,16,38,16z"></path>
    </g>
  </svg>
</div>

我想将SVG放在div的中心.如果它是类似HTML的"代码形式，这不是居中放置SVG的正确方法吗? (不知道它叫什么.)

I want to center the SVG inside the div. Is this not the right way to center an SVG when it is in its "html-like" code form? (Not sure what it's called.)

我知道在fill: red正常工作时我的目标是正确的ass.

I know I am targeting my sass correctly as fill: red is working.

请告知，如果您需要查看更多我的代码，请告诉我，谢谢您的宝贵时间！

Please Advise and let me know if you need to see more of my code, thanks for your time!

推荐答案

• 设置div position:relative和svg position:absolute
• 对于svg，将其命名为top:(calc 50% - 24px)和left:(50% - 24px)
• Make the div position:relative and the svg position:absolute
• For the svg give it top:(calc 50% - 24px) and left:(50% - 24px)

那是div高度的50％减去svg高度的一半，而div宽度的50％减去svg宽度的一半. position:absolute元素(即svg)的边界是其position:relative父对象(即.foo)的边界.

That's 50% of containing div's height minus half the height of svg and 50% of containing div's width minus half the width of svg. A position:absolute element (i.e. svg) boundaries are it's position:relative parent's (i.e. .foo) borders.

SNIPPET

.svg {
  display: block;
  margin: 0 auto;
  position: absolute;
  top: calc(50% - 24px);
  left: calc(50% - 24px);
}
.foo {
  height: 150px;
  width: 150px;
  position: relative;
  border-radius: 50%;
  border: 20px solid brown;
  background: black;
}

<div class="foo ball design">
  <svg class="svg pen" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="48px" height="48px" viewBox="0 0 48 48">
    <g>
      <path data-color="color-2" fill="#e00" d="M5.586,15L15,5.586l-3.293-3.293c-0.391-0.391-1.023-0.391-1.414,0l-8,8 c-0.391,0.391-0.391,1.023,0,1.414L5.586,15z"></path>
      <rect data-color="color-2" x="7.636" y="10.636" transform="matrix(0.7071 -0.7071 0.7071 0.7071 -5.9203 14.293)" fill="#e00" width="13.313" height="7.314"></rect>
      <rect data-color="color-2" x="28.05" y="29.636" transform="matrix(0.7071 -0.7071 0.7071 0.7071 -14.3761 34.707)" fill="#e00" width="13.313" height="10.143"></rect>
      <path data-color="color-2" fill="#e00" d="M44.085,35.329l-8.757,8.757l9.475,1.895C44.869,45.994,44.935,46,45,46 c0.263,0,0.518-0.104,0.707-0.293c0.236-0.236,0.339-0.575,0.273-0.903L44.085,35.329z"></path>
      <path fill="#136f71" d="M45.707,12.293l-10-10c-0.391-0.391-1.023-0.391-1.414,0l-5.291,5.291l2.706,2.709 c0.39,0.391,0.39,1.024-0.001,1.414C31.511,11.902,31.256,12,31,12c-0.256,0-0.512-0.098-0.708-0.293l-2.705-2.708l-3.584,3.584 l1.711,1.711c0.391,0.391,0.391,1.023,0,1.414C25.52,15.902,25.264,16,25.008,16s-0.512-0.098-0.707-0.293l-1.711-1.711 l-3.586,3.586l3.711,3.711c0.391,0.391,0.391,1.023,0,1.414C22.52,22.902,22.264,23,22.008,23s-0.512-0.098-0.707-0.293 l-3.711-3.711l-3.586,3.586l1.711,1.711c0.391,0.391,0.391,1.023,0,1.414C15.52,25.902,15.264,26,15.008,26 s-0.512-0.098-0.707-0.293l-1.711-1.711l-3.586,3.586l3.711,3.711c0.391,0.391,0.391,1.023,0,1.414 C12.52,32.902,12.264,33,12.008,33s-0.512-0.098-0.707-0.293L7.59,28.996l-5.297,5.297c-0.391,0.391-0.391,1.023,0,1.414l10,10 C12.488,45.902,12.744,46,13,46s0.512-0.098,0.707-0.293l32-32C46.098,13.316,46.098,12.684,45.707,12.293z M38,16 c-1.105,0-2-0.895-2-2c0-1.105,0.895-2,2-2s2,0.895,2,2C40,15.105,39.105,16,38,16z"></path>
    </g>
  </svg>
</div>

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