按图像替换项目符号
Replacing bullets by image
我想用图像（大约 40*40）替换项目符号 我尝试使用 list-style-image 但无法调整图像大小。那么如何在不影响文本的情况下调整图像大小？
代码：
ul.no_bullets {
list-style-type: none;
}
li.twitter {
background-image: url("twitter.png");
background-repeat: no-repeat;
}
<ul class="no_bullets">
<li class="twitter"><b>Test 1</b> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen
book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with
desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</li>
<li class="twitter"><b>Test 2</b> – Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen
book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with
desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</li>
<li class="twitter"><b>Test 3r</b> – Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,</li>
<li class="twitter"><b>Test 4</b> –Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,</li>
</ul>
试试这个：
ul.no_bullets{
list-style-type: none;
}
.twitter img{
width: 40px;
height: 40px;
}
<ul class="no_bullets">
<li class="twitter"><img src="data:image/png;base64,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"><b>Test 1</b> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</li>
<li class="twitter"><img src="data:image/png;base64,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"><b>Test 2</b> – Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</li>
<li class="twitter"><img src="data:image/png;base64,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"><b>Test 3r</b> – Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,</li>
<li class="twitter"><img src="data:image/png;base64,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"><b>Test 4</b> –Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,</li>
</ul>
尝试使用 li:before。请参阅下面的示例代码：
ul.no_bullets { list-style: none; }
ul.no_bullets li:before { content: url(twitter.png); }
我想用图像（大约 40*40）替换项目符号 我尝试使用 list-style-image 但无法调整图像大小。那么如何在不影响文本的情况下调整图像大小？
代码：
ul.no_bullets {
list-style-type: none;
}
li.twitter {
background-image: url("twitter.png");
background-repeat: no-repeat;
}
<ul class="no_bullets">
<li class="twitter"><b>Test 1</b> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen
book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with
desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</li>
<li class="twitter"><b>Test 2</b> – Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen
book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with
desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</li>
<li class="twitter"><b>Test 3r</b> – Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,</li>
<li class="twitter"><b>Test 4</b> –Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,</li>
</ul>
试试这个：
ul.no_bullets{
list-style-type: none;
}
.twitter img{
width: 40px;
height: 40px;
}
<ul class="no_bullets">
<li class="twitter"><img src="data:image/png;base64,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"><b>Test 1</b> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</li>
<li class="twitter"><img src="data:image/png;base64,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"><b>Test 2</b> – Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</li>
<li class="twitter"><img src="data:image/png;base64,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"><b>Test 3r</b> – Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,</li>
<li class="twitter"><img src="data:image/png;base64,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"><b>Test 4</b> –Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,</li>
</ul>
尝试使用 li:before。请参阅下面的示例代码：
ul.no_bullets { list-style: none; }
ul.no_bullets li:before { content: url(twitter.png); }