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如何使用CSS的Grid布局实现小狗邮票(附源码)

源代码下载

https://github.com/comehope/front-end-daily-challenges

代码解读

定义 dom,容器表示邮票:

<div class="stamp"> </div>

居中显示:

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

设置容器尺寸:

.stamp {     position: relative;     width: 40.5em;     height: 71em;     font-size: 6px;     padding: 5em;     background-color: white; }

用重复背景绘制出邮票的齿孔:

.stamp {     display: flex;     flex-direction: column;     align-items: center;     justify-content: center; }  .stamp::after, .stamp::before {     content: '';     width: 100%;     height: 100%;     position: absolute;     background: radial-gradient(circle, teal 50%, transparent 50%),     radial-gradient(circle, teal 50%, transparent 50%);     background-size: 3.5em 3.5em; }  .stamp::before {     top: 1.5em;     background-repeat: repeat-y;     background-position: -4.5% 0, 104.5% 0; }  .stamp::after {     left: 1.5em;     background-repeat: repeat-x;     background-position: 0 -2.5%, 0 102.5%; }

在 html 文件中增加小狗的 dom 元素,子元素分别表示耳朵、头部、眼睛、舌头、身体、尾巴和爪子:

<div class="stamp">     <div class="puppy">         <span class="ear"></span>         <span class="head"></span>         <span class="eyes"></span>         <span class="tongue"></span>         <span class="body"></span>         <span class="tail"></span>         <span class="foot"></span>     </div> </div>

设置 grid 布局的行列尺寸:

.puppy {     display: grid;     grid-template-columns: 10em 22.5em 8em;     grid-template-rows: 21em 12.5em 3.75em 22.5em;     background-color: tan;     padding: 2em;     margin-top: -1em; }

画出小狗的头部,跨第1列和第2列、第2行和第3行,是一个半圆形:

.head {     grid-column: 1 / 3;     grid-row: 2 / 4;     border-bottom-left-radius: calc(12.5em + 3.75em);     border-bottom-right-radius: calc(12.5em + 3.75em);     background-color: bisque; }

用伪元素画出鼻子,是一个扇形,多余的部分被隐藏了:

.head {     position: relative;     overflow: hidden; }  .head::before {     content: '';     position: absolute;     width: 7em;     height: 7em;     border-bottom-right-radius: 100%;     background-color: sienna; }

画出半圆形的眼晕:

.eyes {     grid-column: 2;     grid-row: 2;     justify-self: end;     position: relative;     height: 10.5em;     width: 21em;     border-radius: 0 0 10.5em 10.5em;     background-color: sienna; }

用径向渐变画出眼珠:

.eyes {     background-image: radial-gradient(         circle at 37% 33%,         black 1.4em,         transparent 1.4em     ); }

画出半圆形的耳朵:

.ear {     grid-column: 2;     grid-row: 1;     justify-self: end;     width: 10.5em;     border-radius: 21em 0 0 21em;     background-color: sienna; }

画出扇形的舌头:

.tongue {     grid-column: 1;     grid-row: 3;     width: 5.5em;     height: 5.5em;     background-color: indianred;     border-bottom-left-radius: 100%; }

画出扇形的身体:

.body {     grid-column: 2;     grid-row: 4;     background-color: sienna;     border-top-left-radius: 100%; }

用伪元素,通过阴影画出中蹲着的腿:

.body {     position: relative;     overflow: hidden; }  .body::after {     content: '';     position: absolute;     height: 50%;     width: 100%;     border-radius: 11.25em 11.25em 0 0;     box-shadow: 2em 0 4em rgba(0, 0, 0, 0.3);     bottom: 0; }

画出半圆形的尾巴:

.tail {     grid-column: 1;     grid-row: 4;     justify-self: end;     align-self: end;     height: 17.5em;     width: 8.75em;     background-color: bisque;     border-radius: 17.5em 0 0 17.5em; }

画出半圆形的小爪子:

.foot {     grid-column: 3;     grid-row: 4;     align-self: end;     height: 4em;     background-color: bisque;     border-radius: 4em 4em 0 0; }

在 dom 中再增加一些文本,包括标题、作者和面值:

<div class="stamp">     <div class="puppy">         <!-- 略 -->     </div>     <p class="text">         <span class="title">Puppy</span>         <span class="author">comehope</span>         <span class="face-value">80</span>     </p> </div>

设置标题的文字样式:

.text {     position: relative;     width: calc(100% + 2em * 2);     height: 6em;     font-family: sans-serif; }  .text .title {     position: absolute;     font-size: 6em;     font-weight: bold;     color: sienna; }

设置作者的文字样式:

.text .author {     position: absolute;     font-size: 3em;     bottom: -1.2em;     color: dimgray; }

设置面值的文字样式:

.text .face-value {     position: absolute;     font-size: 14em;     right: 0;     line-height: 0.9em;     color: darkcyan; }

大功告成!

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