你可以设计有序列表数字的样式吗？

Question

我正在尝试对有序列表中的数字进行样式设置，我想添加背景颜色、边框半径和颜色，以便它们与我正在使用的设计相匹配：

我想这是不可能的，我必须为每个数字使用不同的图像，即

ol li:first-child {list-style-image:url('1.png')};
ol li:nth-child(2) {list-style-image:url('2.png');} 
etc...

有更简单的解决方案吗？

Answer 1

您可以使用 CSS 计数器 结合

:before

伪元素来完成此操作：

 ol {
   list-style: none;
   counter-reset: item;
 }
 li {
   counter-increment: item;
   margin-bottom: 5px;
 }
 li:before {
   margin-right: 10px;
   content: counter(item);
   background: lightblue;
   border-radius: 100%;
   color: white;
   width: 1.2em;
   text-align: center;
   display: inline-block;
 }

<ol>
  <li>item</li>
  <li>item</li>
  <li>item</li>
  <li>item</li>
</ol>

Answer 2

我一直在寻找不同的东西，并在 CodePen 中找到了这个示例；

试试这个：http://codepen.io/sawmac/pen/txBhK

body {
  font-size: 1.2em;
  font-family: "Helvetica Neue", Helvetica, sans-serif;
  margin: 50px;
}
.custom-counter {
  margin: 0;
  padding: 0;
  list-style-type: none;
}
.custom-counter li {
  counter-increment: step-counter;
  margin-bottom: 5px;
}
.custom-counter li::before {
  content: counter(step-counter);
  margin-right: 20px;
  font-size: 80%;
  background-color: rgb(180, 180, 180);
  color: white;
  font-weight: bold;
  padding: 3px 8px;
  border-radius: 11px;
}

<ol class="custom-counter">
  <li>This is the first item</li>
  <li>This is the second item</li>
  <li>This is the third item</li>
  <li>This is the fourth item</li>
  <li>This is the fifth item</li>
  <li>This is the sixth item</li>
</ol>

Answer 3

2021更新，您可以在最近的浏览器中使用

::marker

伪元素选择器：https://developer.mozilla.org/en-US/docs/Web/CSS/::marker

 li::marker {
   color: red;
 }
 li {
   color: blue;
 }

<ol>
  <li>item</li>
  <li>item</li>
  <li>item</li>
  <li>item</li>
</ol>

Answer 4

简单的解决方案是：

    ol li::marker {
        font-weight: bold;
    }

适用于 Chrome。

Answer 5

body {
  font-size: 1.2em;
  font-family: "Helvetica Neue", Helvetica, sans-serif;
  margin: 50px;
}
.custom-counter {
  margin: 0;
  padding: 0;
  list-style-type: none;
}
.custom-counter li {
  counter-increment: step-counter;
  margin-bottom: 5px;
}
.custom-counter li::before {
  content: counter(step-counter);
  margin-right: 20px;
  font-size: 80%;
  background-color: rgb(180, 180, 180);
  color: white;
  font-weight: bold;
  padding: 3px 8px;
  border-radius: 11px;
}

<ol class="custom-counter">
  <li>This is the first item</li>
  <li>This is the second item</li>
  <li>This is the third item</li>
  <li>This is the fourth item</li>
  <li>This is the fifth item</li>
  <li>This is the sixth item</li>
</ol>

body {
  font-size: 1.2em;
  font-family: "Helvetica Neue", Helvetica, sans-serif;
  margin: 50px;
}
.custom-counter {
  margin: 0;
  padding: 0;
  list-style-type: none;
}
.custom-counter li {
  counter-increment: step-counter;
  margin-bottom: 5px;
}
.custom-counter li::before {
  content: counter(step-counter);
  margin-right: 20px;
  font-size: 80%;
  background-color: rgb(180, 180, 180);
  color: white;
  font-weight: bold;
  padding: 3px 8px;
  border-radius: 11px;
}

<ol class="custom-counter">
  <li>This is the first item</li>
  <li>This is the second item</li>
  <li>This is the third item</li>
  <li>This is the fourth item</li>
  <li>This is the fifth item</li>
  <li>This is the sixth item</li>
</ol>