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2023-10-29 05:00:03

是否有一种方法可以将SVG用作伪元素::before或::after中的内容

我想使用::before在一些选定的元素之前放置SVG图像:

#mydiv::before {
  content: '<svg ... code here</svg>';
  display: block;
  width: 22px;
  height: 10px;
  margin: 10px 5px 0 10px;
}

上面的代码只显示明文。 我检查了规范，似乎有一些限制什么内容可以。CSS内容属性解决方案是可取的。

当前回答

.myDiv {
  display: flex;
  align-items: center;
}

.myDiv:before {
  display: inline-block;
  content: url(./dog.svg);
  margin-right: 15px;
  width: 10px;
}
2019-07-30 17:54:17

其他回答

<div class="author_">Lord Byron</div>

.author_ { font-family: 'Playfair Display', serif; font-size: 1.25em; font-weight: 700;letter-spacing: 0.25em; font-style: italic; position:relative; margin-top: -0.5em; color: black; z-index:1; overflow:hidden; text-align:center; } .author_:after{ left:20px; margin:0 -100% 0 0; display: inline-block; height: 10px; content: url(data:image/svg+xml,%0A%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22120px%22%20height%3D%2220px%22%20viewBox%3D%220%200%201200%20200%22%20xmlns%3Axlink%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%22%3E%0A%20%20%3Cpath%20stroke%3D%22black%22%20stroke-width%3D%223%22%20fill%3D%22none%22%20d%3D%22M1145%2085c17%2C7%208%2C24%20-4%2C29%20-12%2C4%20-40%2C6%20-48%2C-8%20-9%2C-15%209%2C-34%2026%2C-42%2017%2C-7%2045%2C-6%2062%2C2%2017%2C9%2019%2C18%2020%2C27%201%2C9%200%2C29%20-27%2C52%20-28%2C23%20-52%2C34%20-102%2C33%20-49%2C0%20-130%2C-31%20-185%2C-50%20-56%2C-18%20-74%2C-21%20-96%2C-23%20-22%2C-2%20-29%2C-2%20-56%2C7%20-27%2C8%20-44%2C17%20-44%2C17%20-13%2C5%20-15%2C7%20-40%2C16%20-25%2C9%20-69%2C14%20-120%2C11%20-51%2C-3%20-126%2C-23%20-181%2C-32%20-54%2C-9%20-105%2C-20%20-148%2C-23%20-42%2C-3%20-71%2C1%20-104%2C5%20-34%2C5%20-65%2C15%20-98%2C22%22%2F%3E%0A%3C%2Fsvg%3E%0A); } .author_:before { right:20px; margin:0 0 0 -100%; display: inline-block; height: 10px; content: url(data:image/svg+xml,%0A%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22120px%22%20height%3D%2220px%22%20viewBox%3D%220%200%201200%20130%22%20xmlns%3Axlink%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%22%3E%0A%20%20%3Cpath%20stroke%3D%22black%22%20stroke-width%3D%223%22%20fill%3D%22none%22%20d%3D%22M55%2068c-17%2C6%20-8%2C23%204%2C28%2012%2C5%2040%2C7%2048%2C-8%209%2C-15%20-9%2C-34%20-26%2C-41%20-17%2C-8%20-45%2C-7%20-62%2C2%20-18%2C8%20-19%2C18%20-20%2C27%20-1%2C9%200%2C29%2027%2C52%2028%2C23%2052%2C33%20102%2C33%2049%2C-1%20130%2C-31%20185%2C-50%2056%2C-19%2074%2C-21%2096%2C-23%2022%2C-2%2029%2C-2%2056%2C6%2027%2C8%2043%2C17%2043%2C17%2014%2C6%2016%2C7%2041%2C16%2025%2C9%2069%2C15%20120%2C11%2051%2C-3%20126%2C-22%20181%2C-32%2054%2C-9%20105%2C-20%20148%2C-23%2042%2C-3%2071%2C1%20104%2C6%2034%2C4%2065%2C14%2098%2C22%22%2F%3E%0A%3C%2Fsvg%3E%0A); } <div class="author_">Lord Byron</div>

方便的工具SVG编码url-编码器

2015-08-17 08:58:33

小心其他答案在IE中都有问题。

让我们有这种情况-按钮与前置图标。所有浏览器都能正确地处理这一点，但IE采用元素的宽度并缩放之前的内容以适应它。JSFiddle

#mydiv1 { width: 200px; height: 30px; background: green; }
#mydiv1:before {
    content: url("data:url or /standard/url.svg");
}

解决方案是将size设置为element之前，并将其留在原来的位置:

#mydiv2 { width: 200px; height: 30px; background: green; }
#mydiv2:before {
    content: url("data:url or /standard/url.svg");
    display: inline-block;
    width: 16px; //only one size is alright, IE scales uniformly to fit it
}

background-image + background-size解决方案也可以，但有点不方便，因为您必须指定两次相同的大小。

IE11的结果是:

2015-04-18 06:45:40

使用CSS sprites和data uri提供了额外的有趣的好处，如快速加载和更少的请求，我们通过使用image/base64获得IE8支持:

使用SVG编写代码

HTML

<div class="div1"></div>
<div class="div2"></div>

CSS

.div1:after, .div2:after {
  content: '';
  display: block;
  height: 80px;
  width: 80px;
  background-image: url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20version%3D%221.1%22%20height%3D%2280%22%20width%3D%22160%22%3E%0D%0A%20%20%3Ccircle%20cx%3D%2240%22%20cy%3D%2240%22%20r%3D%2238%22%20stroke%3D%22black%22%20stroke-width%3D%221%22%20fill%3D%22red%22%20%2F%3E%0D%0A%20%20%3Ccircle%20cx%3D%22120%22%20cy%3D%2240%22%20r%3D%2238%22%20stroke%3D%22black%22%20stroke-width%3D%221%22%20fill%3D%22blue%22%20%2F%3E%0D%0A%3C%2Fsvg%3E);
}
.div2:after {
  background-position: -80px 0;
}

对于IE8，更改如下:

  background-image: url(data:image/png;base64,data......);
2014-11-21 18:38:37

为了进一步扩展这个主题。如果你想添加字体Awesome 5图标，你需要添加一些额外的CSS。

图标默认有svg-inline——fa和fa-w-*类。

还有像fa-lg, fa-rotate-*等修饰符类。您需要检查svg-with-js.css文件并为其找到合适的CSS。

你需要为css图标添加自己的颜色，否则它将默认为黑色，例如fill='%23f00'，其中%23编码为#。

h1::before{ /* svg-inline--fa */ display:inline-block; font-size:inherit; height:1em; overflow:visible; vertical-align:-.125em; /* fa-w-14 */ width:.875em; /* Icon */ content:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3E%3Cpath fill='%23f00' d='M400 256H152V152.9c0-39.6 31.7-72.5 71.3-72.9 40-.4 72.7 32.1 72.7 72v16c0 13.3 10.7 24 24 24h32c13.3 0 24-10.7 24-24v-16C376 68 307.5-.3 223.5 0 139.5.3 72 69.5 72 153.5V256H48c-26.5 0-48 21.5-48 48v160c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48V304c0-26.5-21.5-48-48-48zM264 408c0 22.1-17.9 40-40 40s-40-17.9-40-40v-48c0-22.1 17.9-40 40-40s40 17.9 40 40v48z'%3E%3C/path%3E%3C/svg%3E"); /* Margin */ margin-right:.75rem; } <h1>Lorem Ipsum</h1>

2020-01-28 04:16:26 
.myDiv {
  display: flex;
  align-items: center;
}

.myDiv:before {
  display: inline-block;
  content: url(./dog.svg);
  margin-right: 15px;
  width: 10px;
}
2019-07-30 17:54:17

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