如何用纯 CSS 描述程序员的生活

红太狼 2022-04-13 03:21 159阅读 0赞

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3cxNzgxOTE1MjA_size_16_color_FFFFFF_t_70]

## 效果预览 ##

[在线演示][Link 1]

按下右侧的“点击预览”按钮可以在当前页面预览，点击链接可以全屏预览。

[https://codepen.io/comehope/pen/YvYVvY][https_codepen.io_comehope_pen_YvYVvY]

## 可交互视频 ##

此视频是可以交互的，你可以随时暂停视频，编辑视频中的代码。

请用 chrome, safari, edge 打开观看。

[https://scrimba.com/p/pEgDAM/cN6L9SZ][https_scrimba.com_p_pEgDAM_cN6L9SZ]

## 源代码下载 ##

[本地下载][Link 2]

每日前端实战系列的全部源代码请从 github 下载：

[https://github.com/comehope/front-end-daily-challenges][https_github.com_comehope_front-end-daily-challenges]

## 代码解读 ##

定义 dom，容器中包含 6 个段落，每个段落 1 行代码：

<div class="code">
 function repeat() {
 eat();
 sleep();
 code();
 repeat();
 }
 </div>

居中显示：

body {
      margin: 0;
      height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
    }

代码布局：

.code {
        background-color: silver;
        padding: 1em 0;
        font-size: 24px;
        font-family: monospace;
        border-radius: 0.5em;
    }
    
    .code p {
        white-space: pre;
        padding: 0 1em;
        margin: 0.5em;
    }

定义动画：

.code p:not(:last-child) {
        animation: step 2s infinite;
    }
    
    @keyframes step {
        0%, 25% {
            color: white;
            background-color: dodgerblue;
        }
    
        26%, 100% {
            color: black;
            background-color: transparent;
        }
    }

设置动画延时，描述单步执行的场景：

.code p:not(:last-child) {
        animation-delay: var(--d);
    }
    
    .code p:nth-child(2) {
        --d: 0s;
    }
    
    .code p:nth-child(3) {
        --d: 0.5s;
    }
    
    .code p:nth-child(4) {
        --d: 1s;
    }
    
    .code p:nth-child(1),
    .code p:nth-child(5) {
        --d: 1.5s;
    }

大功告成！

原文地址：[https://segmentfault.com/a/1190000015316996][https_segmentfault.com_a_1190000015316996]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3cxNzgxOTE1MjA_size_16_color_FFFFFF_t_70]: /images/20220413/d0b2ad3cbc1d40fdb0b1479d84ecdb26.png
[Link 1]: https://www.jqhtml.com/yanshi?demourl=%2Fwp-content%2Fuploads%2F2018%2F11%2Ffront-end-daily-challenges-master%2F056-a-programmers-life&demotitle=%E7%BA%AF%20CSS%20%E6%8F%8F%E8%BF%B0%E7%A8%8B%E5%BA%8F%E5%91%98%E7%9A%84%E7%94%9F%E6%B4%BB
[https_codepen.io_comehope_pen_YvYVvY]: https://codepen.io/comehope/pen/YvYVvY
[https_scrimba.com_p_pEgDAM_cN6L9SZ]: https://scrimba.com/p/pEgDAM/cN6L9SZ
[Link 2]: http://www.jqhtml.com/19366.html
[https_github.com_comehope_front-end-daily-challenges]: https://github.com/comehope/front-end-daily-challenges
[https_segmentfault.com_a_1190000015316996]: https://segmentfault.com/a/1190000015316996