GitHub精选 使用纯CSS实现动画加载效果
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参考技术A《GitHub精选》是我们分享Github中优质项目的栏目，包括技术、学习、实用与各种有趣的内容。本期推荐的是一个使用纯CSS实现动画加载效果的项目——SpinKit。
SpinKit通过使用transform和opacity属性实现了包括方块翻转、圆点旋转、圆环缩放和九宫格渐变等10余种动画加载的效果。
部分效果代码：
其他效果：
GitHub: https://github.com/tobiasahlin/SpinKit
纯css实现按钮动画
前言
按钮在开发中使用的频率非常的高，ui 框架中的按钮组件也都是层出不穷，今天教大家仅用 css 实现一些非常炫酷的按钮效果，下面一起来看看吧。
1. 小鸡按钮
实现效果
完整源码
<template>
<div class="parentBox">
<!-- 按钮 -->
<div class="contantBox btnBridBox">
<div class="outerBox">
<span class="textBox">CONFIRM</span>
</div>
<!-- 三只小鸡 -->
<div class="birdBox">
<div class="chookBox chookUseBox">
<div class="faceBox"></div>
</div>
<div class="chookBox chookUseBox">
<div class="faceBox"></div>
</div>
<div class="chookBox">
<div class="faceBox"></div>
</div>
</div>
</div>
</div>
</template>
<style lang="less" scoped>
.parentBox
height: 100%;
padding: 200px;
.contantBox
display: flex;
justify-content: center;
align-items: center;
box-sizing: border-box;
width: 280px;
height: 80px;
text-decoration: none;
border: solid 3px #000;
border-radius: 40px;
background: var(--main_color);
position: relative;
.btnBridBox
--main_color: #f4cf47;
--sub_color1: #f4e19c;
--sub_color2: #ff8108;
--base_color: #000;
--border_radius1: 60px 60px 40px 40px / 48px 48px 30px 30px;
--border_radius2: 70px 70px 40px 40px / 48px 48px 30px 30px;
--border_radius3: 40px 40px 40px 40px / 48px 48px 30px 30px;
.outerBox
display: flex;
justify-content: center;
align-items: center;
width: 100%;
height: 100%;
border-radius: 40px;
overflow: hidden;
position: relative;
.textBox
position: relative;
font-size: 32px;
letter-spacing: 2px;
color: var(--base_color);
transition: all 0.3s ease;
.contantBox::before
content: "";
position: absolute;
right: 20px;
margin: auto 0;
width: 24px;
height: 24px;
background: var(--base_color);
clip-path: path(
"M24,12.02c0-1.09-.75-1.71-.81-1.77L11.17,.45c-.91-.74-2.21-.56-2.91,.42-.69,.97-.52,2.37,.39,3.11l7.12,5.81-13.7-.02h0C.93,9.77,0,10.76,0,11.99c0,1.23,.93,2.22,2.07,2.22l13.7,.02-7.13,5.78c-.91,.74-1.09,2.13-.4,3.11,.41,.58,1.03,.88,1.65,.88,.44,0,.88-.15,1.25-.45l12.04-9.76c.07-.06,.82-.67,.82-1.77Z"
);
transition: all ease 0.2s;
.btnBridBox .outerBox::before,
.btnBridBox .outerBox::after
content: "";
position: absolute;
bottom: 0;
width: 130px;
height: 38px;
background: var(--sub_color1);
transition: all 0.5s ease;
clip-path: path(
"M13.77,37.35L.25,16.6c-.87-1.33,.69-2.91,2-2.02l12.67,8.59c.81,.55,1.91,.14,2.18-.81l2.62-9.33c.39-1.4,2.34-1.42,2.76-.02l3.6,11.99c.33,1.11,1.74,1.4,2.47,.52L49.38,.52c.87-1.04,2.53-.42,2.53,.95V23.7c0,1.13,1.2,1.83,2.16,1.26l12.75-7.51c.85-.5,1.94,0,2.13,.98l1.5,7.6c.2,1.03,1.37,1.51,2.22,.92l17.74-12.3c1.09-.75,2.52,.25,2.21,1.55l-2.44,10.2c-.26,1.09,.74,2.06,1.8,1.75l30.8-9.04c1.37-.4,2.42,1.26,1.49,2.36l-9.07,10.66c-.83,.98-.1,2.49,1.17,2.42l12.12-.68c1.6-.09,2.12,2.15,.65,2.8l-2.73,1.21c-.18,.08-.38,.12-.58,.12H14.97c-.48,0-.93-.25-1.2-.65Z"
);
.btnBridBox .outerBox::before
left: 0;
.btnBridBox .outerBox::after
right: 0;
transform: rotateY(180deg);
.contantBox :hover
cursor: pointer;
.contantBox:hover .outerBox::before
transform: translateX(-12px);
.contantBox:hover .outerBox::after
transform: rotateY(180deg) translateX(-12px);
.contantBox:hover .textBox
letter-spacing: 4px;
.contantBox:hover::before
right: 14px;
.birdBox
position: absolute;
top: -54px;
display: flex;
justify-content: space-between;
align-items: flex-end;
width: 180px;
height: 56px;
.chookBox
position: relative;
width: 56px;
height: 36px;
box-sizing: border-box;
border: solid 3px #000;
background: var(--main_color);
border-radius: var(--border_radius1);
animation: sleep 1s ease infinite alternate;
display: flex;
justify-content: center;
.faceBox
position: absolute;
top: 15px;
width: 12px;
height: 6px;
background: var(--sub_color2);
border-radius: 50% 50% 50% 50% / 78% 78% 22% 22%;
transition: 0.2s;
.faceBox::before,
.faceBox::after
content: "";
position: absolute;
top: -4px;
width: 8px;
height: 2px;
border-radius: 4px;
background: #000;
.faceBox::before
left: -5px;
.faceBox::after
right: -5px;
.chookBox::before
content: "";
position: absolute;
top: -12px;
left: 22px;
width: 12px;
height: 12px;
background: #000;
clip-path: path(
"M10.23,3.32c-3.54,.63-5.72,2.51-7.02,4.23-.33-1.58-.34-3.54,.93-5.12,.52-.65,.41-1.59-.24-2.11C3.24-.19,2.29-.08,1.77,.57c-3.82,4.77-.31,11.11-.13,11.42,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0-.01-.02,2.49,.04,2.52,0,.1-.14,1.54-4.82,6.59-5.71,.82-.14,1.37-.92,1.22-1.74s-.94-1.36-1.75-1.21Z"
);
.contantBox:hover .chookUseBox
animation: chookUseBox 0.2s ease;
animation-fill-mode: forwards;
.contantBox:hover .chookUseBox .faceBox
top: 20px;
.contantBox:hover .chookUseBox .faceBox::before,
.contantBox:hover .chookUseBox .faceBox::after
animation: eye 5s linear infinite;
.contantBox:hover .chookUseBox:nth-child(2) .faceBox::before,
.contantBox:hover .chookUseBox:nth-child(2) .faceBox::after
animation: eye_2 5s linear infinite;
@keyframes chookUseBox
0%
height: 32px;
border-radius: var(--border_radius2);
100%
height: 56px;
border-radius: var(--border_radius3);
@keyframes eye
0%
top: -6px;
width: 6px;
height: 6px;
30%
top: -6px;
width: 6px;
height: 6px;
32%
top: -4px;
width: 8px;
height: 2px;
34%
top: -6px;
width: 6px;
height: 6px;
70%
top: -6px;
width: 6px;
height: 6px;
72%
top: -4px;
width: 8px;
height: 2px;
74%
top: -6px;
width: 6px;
height: 6px;
76%
top: -4px;
width: 8px;
height: 2px;
78%
top: -6px;
width: 6px;
height: 6px;
100%
top: -6px;
width: 6px;
height: 6px;
@keyframes eye_2
0%
top: -6px;
width: 6px;
height: 6px;
10%
transform: translateX(0);
12%
transform: translateX(3px);
20%
top: -6px;
width: 6px;
height: 6px;
22%
top: -4px;
width: 8px;
height: 2px;
24%
top: -6px;
width: 6px;
height: 6px;
25%
transform: translateX(3px);
27%
transform: translateX(0);
74%
top: -6px;
width: 6px;
height: 6px;
transform: translateX(0);
76%
top: -4px;
width: 8px;
height: 2px;
transform: translateX(3px);
78%
top: -6px;
width: 6px;
height: 6px;
80%
top: -4px;
width: 8px;
height: 2px;
82%
top: -6px;
width: 6px;
height: 6px;
85%
transform: translateX(3px);
87%
transform: translateX(0);
100%
top: -6px;
width: 6px;
height: 6px;
transform: translateX(0);
@keyframes sleep
0%
height: 36px;
border-radius: var(--border_radius1);
100%
height: 32px;
border-radius: var(--border_radius2);
</style>
2. 横线按钮
实现效果
完整源码
<template>
<div class="parentBox">
<div class="btnBox">Hello</div>
</div>
</template>
<style scoped>
.parentBox
padding: 100px;
height: 100%;
background: black;
.btnBox
text-align: center;
color: #fff;
cursor: pointer;
display: block;
line-height: 45px;
width: 160px;
letter-spacing: 2px;
font-size: 16px;
.btnBox:after,
.btnBox:before
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
border: 1px solid rgba(255, 255, 255, 0);
bottom: 0px;
content: " ";
display: block;
margin: 0 auto;
position: relative;
-webkit-transition: all 280ms ease-in-out;
transition: all 280ms ease-in-out;
width: 0;
.btnBox:hover:after,
.btnBox:hover:before
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
border-color: #fff;
-webkit-transition: width 350ms ease-in-out;
transition: width 350ms ease-in-out;
width: 70%;
.btnBox:hover:before
bottom: auto;
top: 0;
width: 70%;
</style>
3. 凹凸按钮
实现效果
完整源码
<template>
<div class="parentBox">
<div class="btnBox">Hello</div>
</div>
</template>
<style scoped>
.parentBox
padding: 100px;
height: 100%;
background: black;
.btnBox
text-align: center;
color: #fff;
cursor: pointer;
display: block;
line-height: 45px;
width: 160px;
letter-spacing: 2px;
font-size: 16px;
.btnBox
background: #e3403a;
border: 1px solid #da251f;
box-shadow: 0px 2px 0 #d6251f, 2px 4px 6px #e02a24;
font-weight: 900;
letter-spacing: 1px;
-webkit-transition: all 150ms linear;
transition: all 150ms linear;
.btnBox:hover
background: #e02c26;
border: 1px solid rgba(0, 0, 0, 0.05);
box-shadow: 1px 1px 2px rgba(255, 255, 255, 0.2);
color: #ec817d;
text-decoration: none;
text-shadow: -1px -1px 0 #c2211c;
-webkit-transition: all 250ms linear;
transition: all 250ms linear;
</style>
4. 波纹按钮
实现效果
完整源码
<template>
<div class="parentBox">
<div class="btnBox"><span>Hello&以上是关于GitHub精选 使用纯CSS实现动画加载效果的主要内容，如果未能解决你的问题，请参考以下文章