css 好的编号列表，带有彩色圆圈中的文本阴影的数字。致谢：http：//blog.teamtreehouse.com/customize-ordered-lists-pseudo-eleme

Posted 2021-05-13

ol.numbers {
    list-style-type: none !important;
    margin: 0;
    padding: 0;
}
ol.numbers li {
    counter-increment: step-counter;
    font-size: 18px;
    list-style-type: none !important;
    margin: 0 0 12px;
}
ol.numbers li::before {
    background-color: #d91420; /*change to match your layout */
    border-radius: 50%;
    color: white;
    content: counter(step-counter, decimal);
    font-size: 80%;
    font-weight: bold;
    margin-right: 10px;
    padding: 3px 8px;
    text-shadow: 1px 1px 1px #333;
}