著意登楼瞻玉兔，何人张幕遮银阙？又到了一年一度的网页小挂件环节，以往我们都是集成别人开源的组件，但所谓熟读唐诗三百首，不会做诗也会吟，熟读了别人的东西，做几首打油诗也是可以的，但若不能自出机抒，却也成不了大事，所以本次我们从零开始制作属于自己的网页小挂件，博君一晒。
玉兔主题元素绘制
成本最低的绘制方式是使用纯CSS，不依赖任何图片和三方库，首先创建绘制容器：
<div id="rabbit_box">
</div>
由于是小挂件，我们首先将容器固定在右下角：
#rabbit_box{
position: fixed;
bottom: var(--pos,5%);
right: 35px;
z-index: 99;
border: none;
outline: none;
filter: drop-shadow(3px 5px 2px rgb(0 0 0 / 0.4));
}
这里加了一层filter滤镜，可以让玉兔更加立体。
考虑到复用性和可移植性，将主题元素动态添加到容器中：
function rabbit_init(){
var container = document.getElementById("rabbit_box");
container.innerHTML = '<div class="rabbit"><div class="rabbit__leg rabbit__leg--one"></div><div class="rabbit__leg rabbit__leg--two"></div><div class="rabbit__tail"></div><div class="rabbit__body"></div><div class="rabbit__leg rabbit__leg--three"></div><div class="rabbit__leg rabbit__leg--four"></div><div class="rabbit__ear rabbit__ear--right"></div><div class="rabbit__head"></div><div class="rabbit__ear rabbit__ear--left"></div></div>';
}
rabbit_init()
这里玉兔元素由八个小组件构成，分别是头部，四肢，四爪，两只耳朵，眼睛，尾巴以及嘴。
随后设置CSS样式：
.rabbit .rabbit__body {
width: 4em;
height: 5.6em;
background: #F4F4F4;
border-radius: 50% 50% 50% 50%/60% 60% 40% 40%;
transform: rotate(-40deg);
box-shadow: inset -2.3em -2.7em 0 0 var(--theme-color,#D2DAEE);
}
兔子身体元素通过border-radius来获得圆润的曲线，同时使用transform旋转元素得到一个适合的角度。最后通过box-shadow属性来设置颜色，颜色可以自定义，如果没有自定义则使用默认值#D2DAEE，注意旋转角度需要指定单位：deg。
接着绘制头部：
.rabbit .rabbit__head {
position: absolute;
width: 4em;
height: 4.6em;
top: -2.5em;
left: -2em;
background: var(--theme-color,#e1e6f4);
border-radius: 50% 50% 50% 50%/65% 60% 40% 35%;
transform: rotate(-120deg);
overflow: hidden;
}
.rabbit .rabbit__head:before {
content: "";
position: absolute;
width: 0.65em;
height: 0.5em;
top: -0.1em;
left: 1.8em;
background: #F97996;
border-radius: 50% 50% 50% 50%/30% 30% 70% 70%;
transform: rotate(130deg);
}
.rabbit .rabbit__head:after {
content: "";
position: absolute;
width: 1em;
height: 1em;
top: 1.5em;
left: 1.6em;
background: #F4F4F4;
border-radius: 50%;
box-shadow: inset 0.1em 0.15em 0 0.37em #e2262e;
}
这里通过::before 和 ::after 伪元素在兔子头部元素的前面或后面插入内容，头部前面绘制兔嘴，后面则插入兔子眼睛，之所以这样控制，是因为可以灵活的使用box-shadow填充颜色。
接着绘制耳朵：
.rabbit .rabbit__ear {
position: absolute;
border-radius: 50% 50% 50% 50%/40% 40% 60% 60%;
transform-origin: 50% 100%;
}
.rabbit .rabbit__ear--left {
width: 2.2em;
height: 4.7em;
top: -5.7em;
left: -0.2em;
background: #F3E3DE;
transform: rotate(60deg);
box-shadow: inset 0.3em -0.4em 0 -0.1em var(--theme-color,#c7d1ea);
-webkit-animation: ear-left 3s infinite ease-out;
animation: ear-left 3s infinite ease-out;
}
.rabbit .rabbit__ear--right {
width: 2em;
height: 4.7em;
top: -5.5em;
left: -0.7em;
background: var(--theme-color,#D2DAEE);
transform: rotate(20deg);
-webkit-animation: ear-right 3s infinite ease-out;
animation: ear-right 3s infinite ease-out;
}
@-webkit-keyframes ear-left {
0%, 20%, 100% {
transform: rotate(40deg);
}
10%, 30%, 80% {
transform: rotate(45deg);
}
90% {
transform: rotate(50deg);
}
}
@keyframes ear-left {
0%, 20%, 100% {
transform: rotate(40deg);
}
10%, 30%, 80% {
transform: rotate(45deg);
}
90% {
transform: rotate(50deg);
}
}
@-webkit-keyframes ear-right {
0%, 20%, 100% {
transform: rotate(10deg);
}
10%, 30%, 80% {
transform: rotate(5deg);
}
90% {
transform: rotate(0deg);
}
}
@keyframes ear-right {
0%, 20%, 100% {
transform: rotate(10deg);
}
10%, 30%, 80% {
transform: rotate(5deg);
}
90% {
transform: rotate(0deg);
}
}
这里通过-webkit-animation属性让兔子左右耳在3秒内进行来回摆动，达到一种动态效果，注意左耳内侧颜色固定为：#F3E3DE，同时动画会影响元素的布局，需要注意元素的宽高。
最后就是四肢和尾巴：
.rabbit .rabbit__leg {
position: absolute;
}
.rabbit .rabbit__leg--one {
width: 0.8em;
height: 3em;
top: 2.3em;
left: 0.2em;
background: var(--theme-color,#c7d1ea);
border-radius: 50% 50% 50% 50%/30% 30% 70% 70%;
transform-origin: 50% 0%;
transform: rotate(15deg);
}
.rabbit .rabbit__leg--one:before {
content: "";
position: absolute;
width: 0.8em;
height: 0.5em;
top: 2.6em;
left: -0.2em;
background: #f3f6ff;
border-radius: 50% 50% 50% 50%/70% 70% 30% 30%;
transform: rotate(-10deg);
}
.rabbit .rabbit__leg--three {
width: 0.9em;
height: 3em;
top: 2.4em;
left: 0.7em;
background: var(--theme-color,#e1e6f4);
border-radius: 50% 50% 50% 50%/30% 30% 70% 70%;
transform-origin: 50% 0%;
transform: rotate(10deg);
}
.rabbit .rabbit__leg--three:before {
content: "";
position: absolute;
width: 0.8em;
height: 0.5em;
top: 2.6em;
left: -0.2em;
background: #f3f6ff;
border-radius: 50% 50% 50% 50%/70% 70% 30% 30%;
transform: rotate(-10deg);
}
.rabbit .rabbit__leg--two {
width: 2.6em;
height: 3.6em;
top: 1.7em;
left: 1.6em;
background: #c7d1ea;
border-radius: 50% 50% 50% 50%/50% 50% 50% 50%;
transform-origin: 50% 0%;
transform: rotate(10deg);
}
.rabbit .rabbit__leg--two:before {
content: "";
position: absolute;
width: 1.6em;
height: 0.8em;
top: 3.05em;
left: 0em;
background: #f3f6ff;
border-radius: 50% 50% 50% 50%/70% 70% 30% 30%;
transform: rotate(-10deg);
}
.rabbit .rabbit__leg--four {
width: 2.6em;
height: 3.6em;
top: 1.8em;
left: 2.1em;
background: var(--theme-color,#e1e6f4);
border-radius: 50% 50% 50% 50%/50% 50% 50% 50%;
transform-origin: 50% 0%;
transform: rotate(10deg);
}
.rabbit .rabbit__leg--four:before {
content: "";
position: absolute;
width: 1.6em;
height: 0.8em;
top: 3.05em;
left: 0em;
background: #f3f6ff;
border-radius: 50% 50% 50% 50%/70% 70% 30% 30%;
transform: rotate(-10deg);
}
.rabbit .rabbit__tail {
position: absolute;
width: 0.9em;
height: 0.9em;
top: 3.7em;
left: 4em;
background: var(--theme-color,#D2DAEE);
transform: rotate(25deg);
}
.rabbit .rabbit__tail:after, .rabbit .rabbit__tail:before {
content: "";
position: absolute;
width: 100%;
height: 100%;
background: var(--theme-color,#D2DAEE);
border-radius: 50%;
}
.rabbit .rabbit__tail:before {
top: 0;
left: -50%;
}
.rabbit .rabbit__tail:after {
top: 50%;
left: 0;
}
这里四肢和四爪的颜色应该有差异，四肢颜色可以自定义，四爪固定为白色，以达到“四蹄踏雪”的效果。
接着改造初始化函数，使其可以动态更改颜色：
function rabbit_init(color=null,pos=null){
var container = document.getElementById("rabbit_box");
container.innerHTML = '<div class="rabbit"><div class="rabbit__leg rabbit__leg--one"></div><div class="rabbit__leg rabbit__leg--two"></div><div class="rabbit__tail"></div><div class="rabbit__body"></div><div class="rabbit__leg rabbit__leg--three"></div><div class="rabbit__leg rabbit__leg--four"></div><div class="rabbit__ear rabbit__ear--right"></div><div class="rabbit__head"></div><div class="rabbit__ear rabbit__ear--left"></div></div>';
if(color != null){
document.documentElement.style.setProperty("--theme-color",color);
}
if(pos != null){
document.documentElement.style.setProperty("--pos",pos);
}
}
rabbit_init("pink")
最终效果：
开源发布
现在我们将这个开源特效打包上线，首先创建项目目录：
mkdir rabbit
随后将特效的样式CSS代码以及JS代码分别抽离出来：rabbit.css:
.rabbit {
position: relative;
}
.rabbit .rabbit__body {
width: 4em;
height: 5.6em;
background: #F4F4F4;
border-radius: 50% 50% 50% 50%/60% 60% 40% 40%;
transform: rotate(-40deg);
box-shadow: inset -2.3em -2.7em 0 0 var(--theme-color,#D2DAEE);
}
.rabbit .rabbit__head {
position: absolute;
width: 4em;
height: 4.6em;
top: -2.5em;
left: -2em;
background: var(--theme-color,#e1e6f4);
border-radius: 50% 50% 50% 50%/65% 60% 40% 35%;
transform: rotate(-120deg);
overflow: hidden;
}
.rabbit .rabbit__head:before {
content: "";
position: absolute;
width: 0.65em;
height: 0.5em;
top: -0.1em;
left: 1.8em;
background: #F97996;
border-radius: 50% 50% 50% 50%/30% 30% 70% 70%;
transform: rotate(130deg);
}
.rabbit .rabbit__head:after {
content: "";
position: absolute;
width: 1em;
height: 1em;
top: 1.5em;
left: 1.6em;
background: #F4F4F4;
border-radius: 50%;
box-shadow: inset 0.1em 0.15em 0 0.37em #e2262e;
}
.rabbit .rabbit__ear {
position: absolute;
border-radius: 50% 50% 50% 50%/40% 40% 60% 60%;
transform-origin: 50% 100%;
}
.rabbit .rabbit__ear--left {
width: 2.2em;
height: 4.7em;
top: -5.7em;
left: -0.2em;
background: #F3E3DE;
transform: rotate(60deg);
box-shadow: inset 0.3em -0.4em 0 -0.1em var(--theme-color,#c7d1ea);
-webkit-animation: ear-left 3s infinite ease-out;
animation: ear-left 3s infinite ease-out;
}
.rabbit .rabbit__ear--right {
width: 2em;
height: 4.7em;
top: -5.5em;
left: -0.7em;
background: var(--theme-color,#D2DAEE);
transform: rotate(20deg);
-webkit-animation: ear-right 3s infinite ease-out;
animation: ear-right 3s infinite ease-out;
}
.rabbit .rabbit__leg {
position: absolute;
}
.rabbit .rabbit__leg--one {
width: 0.8em;
height: 3em;
top: 2.3em;
left: 0.2em;
background: var(--theme-color,#c7d1ea);
border-radius: 50% 50% 50% 50%/30% 30% 70% 70%;
transform-origin: 50% 0%;
transform: rotate(15deg);
}
.rabbit .rabbit__leg--one:before {
content: "";
position: absolute;
width: 0.8em;
height: 0.5em;
top: 2.6em;
left: -0.2em;
background: #f3f6ff;
border-radius: 50% 50% 50% 50%/70% 70% 30% 30%;
transform: rotate(-10deg);
}
.rabbit .rabbit__leg--three {
width: 0.9em;
height: 3em;
top: 2.4em;
left: 0.7em;
background: var(--theme-color,#e1e6f4);
border-radius: 50% 50% 50% 50%/30% 30% 70% 70%;
transform-origin: 50% 0%;
transform: rotate(10deg);
}
.rabbit .rabbit__leg--three:before {
content: "";
position: absolute;
width: 0.8em;
height: 0.5em;
top: 2.6em;
left: -0.2em;
background: #f3f6ff;
border-radius: 50% 50% 50% 50%/70% 70% 30% 30%;
transform: rotate(-10deg);
}
.rabbit .rabbit__leg--two {
width: 2.6em;
height: 3.6em;
top: 1.7em;
left: 1.6em;
background: #c7d1ea;
border-radius: 50% 50% 50% 50%/50% 50% 50% 50%;
transform-origin: 50% 0%;
transform: rotate(10deg);
}
.rabbit .rabbit__leg--two:before {
content: "";
position: absolute;
width: 1.6em;
height: 0.8em;
top: 3.05em;
left: 0em;
background: #f3f6ff;
border-radius: 50% 50% 50% 50%/70% 70% 30% 30%;
transform: rotate(-10deg);
}
.rabbit .rabbit__leg--four {
width: 2.6em;
height: 3.6em;
top: 1.8em;
left: 2.1em;
background: var(--theme-color,#e1e6f4);
border-radius: 50% 50% 50% 50%/50% 50% 50% 50%;
transform-origin: 50% 0%;
transform: rotate(10deg);
}
.rabbit .rabbit__leg--four:before {
content: "";
position: absolute;
width: 1.6em;
height: 0.8em;
top: 3.05em;
left: 0em;
background: #f3f6ff;
border-radius: 50% 50% 50% 50%/70% 70% 30% 30%;
transform: rotate(-10deg);
}
.rabbit .rabbit__tail {
position: absolute;
width: 0.9em;
height: 0.9em;
top: 3.7em;
left: 4em;
background: var(--theme-color,#D2DAEE);
transform: rotate(25deg);
}
.rabbit .rabbit__tail:after, .rabbit .rabbit__tail:before {
content: "";
position: absolute;
width: 100%;
height: 100%;
background: var(--theme-color,#D2DAEE);
border-radius: 50%;
}
.rabbit .rabbit__tail:before {
top: 0;
left: -50%;
}
.rabbit .rabbit__tail:after {
top: 50%;
left: 0;
}
@-webkit-keyframes ear-left {
0%, 20%, 100% {
transform: rotate(40deg);
}
10%, 30%, 80% {
transform: rotate(45deg);
}
90% {
transform: rotate(50deg);
}
}
@keyframes ear-left {
0%, 20%, 100% {
transform: rotate(40deg);
}
10%, 30%, 80% {
transform: rotate(45deg);
}
90% {
transform: rotate(50deg);
}
}
@-webkit-keyframes ear-right {
0%, 20%, 100% {
transform: rotate(10deg);
}
10%, 30%, 80% {
transform: rotate(5deg);
}
90% {
transform: rotate(0deg);
}
}
@keyframes ear-right {
0%, 20%, 100% {
transform: rotate(10deg);
}
10%, 30%, 80% {
transform: rotate(5deg);
}
90% {
transform: rotate(0deg);
}
}
#rabbit_box{
position: fixed;
bottom: var(--pos,5%);
right: 35px;
z-index: 99;
border: none;
outline: none;
filter: drop-shadow(3px 5px 2px rgb(0 0 0 / 0.4));
}
rabbit.js代码：
(function (name, context, fn) {
if (typeof module != 'undefined' && module.exports) {
// Node 环境
module.exports = fn();
} else if (typeof context['define'] == 'function' && (context['define']['amd'] || context['define']['cmd'])) {
// Require.js 或 Sea.js 环境
define(fn);
} else {
// client 环境
context[name] = fn();
}
})('rabbit_init', this, function () {
return function (color=null,pos=null) {
var container = document.getElementById("rabbit_box");
container.innerHTML = '<div class="rabbit"><div class="rabbit__leg rabbit__leg--one"></div><div class="rabbit__leg rabbit__leg--two"></div><div class="rabbit__tail"></div><div class="rabbit__body"></div><div class="rabbit__leg rabbit__leg--three"></div><div class="rabbit__leg rabbit__leg--four"></div><div class="rabbit__ear rabbit__ear--right"></div><div class="rabbit__head"></div><div class="rabbit__ear rabbit__ear--left"></div></div>';
if(color != null){
document.documentElement.style.setProperty("--theme-color",color);
}
if(pos != null){
document.documentElement.style.setProperty("--pos",pos);
}
}
});
保存在项目的lib目录。
首先将项目提交到Github: https://github.com/zcxey2911/rabbit
随后运行命令填写NPM配置：
npm init
entry point 配置项填写你的入口文件：
entry point: ./lib/rabbit.js
登录NPM账号，随后发布：
npm login
npm publish
登录之前，最好将切换回默认源，否则无法登录：
npm config set registry=https://registry.npmjs.com
发布成功后，查看发布内容：https://www.npmjs.com/package/rabbit-widget
开源库引入和使用
首先需要引入模块，可以使用 CDN 直接引入或者通过 NPM 包的形式安装。
直接引入：
<!-- https://cdn.jsdelivr.net/gh/zcxey2911/rabbit@v1.0.0/lib/rabbit.css -->
<!-- https://cdn.jsdelivr.net/gh/zcxey2911/rabbit@v1.0.0/lib/rabbit.js -->
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/gh/zcxey2911/rabbit@v1.0.0/lib/rabbit.css"
/>
<div id="rabbit_box">
</div>
<script>
function init_rabbit(){
rabbit_init("pink","20%"); // 粉色 高度20%
//rabbit_init(); //默认颜色 默认位置
}
</script>
<script
async
onload="init_rabbit()"
src="https://cdn.jsdelivr.net/gh/zcxey2911/rabbit@v1.0.0/lib/rabbit.js"
></script>
NPM 包的形式安装：
// npm install --save rabbit-widget
import 'rabbit-widget/lib/rabbit.css';
var rabbit_init = require('rabbit-widget');
rabbit_init();
如果使用NPM导入模块的形式引入，请确保页面加载完毕之后执行再执行rabbit_init();，否则会报错：Uncaught TypeError: Cannot set properties of null (setting 'innerHTML')。
这里以Vue.js3.0组件为例子：
<template>
<a-layout class="layout">
<a-layout-header>
<div class="logo" />
<ad_header />
</a-layout-header>
<a-layout-content>
<a-breadcrumb>
<a-breadcrumb-item>广告平台</a-breadcrumb-item>
<a-breadcrumb-item>首页</a-breadcrumb-item>
</a-breadcrumb>
<div :style="{ background: '#fff', padding: '24px', minHeight: '280px' }">
这里是首页
<div id="rabbit_box"></div>
</div>
</a-layout-content>
<a-layout-footer>
在线广告平台
</a-layout-footer>
</a-layout>
</template>
<script>
import ad_header from './ad_header';
import 'rabbit-widget/lib/rabbit.css';
var rabbit_init = require('rabbit-widget');
export default {
data() {
return {
}
},
//声明子组件
components:{
'ad_header':ad_header
},
methods:{
},
created(){
this.$nextTick(() => {
console.log("页面加载完啦~")
rabbit_init();
})
}
}
</script>
<style>
.site-layout-content {
min-height: 280px;
padding: 24px;
background: #fff;
}
#components-layout-demo-top .logo {
float: left;
width: 120px;
height: 31px;
margin: 16px 24px 16px 0;
background: rgba(255, 255, 255, 0.3);
}
.ant-row-rtl #components-layout-demo-top .logo {
float: right;
margin: 16px 0 16px 24px;
}
[data-theme='dark'] .site-layout-content {
background: #141414;
}
</style>
项目中引入效果：
结语
奉上项目代码，与众亲同飨:https://github.com/zcxey2911/rabbit https://www.npmjs.com/package/rabbit-widget ，最后祝各位乡亲祥瑞玉兔，人机平安，愿诸君2023年武运昌隆，前端一统。