看到不少 App 下拉刷新时，都有加载动画，于是，也想给微信小程序加一个动画特效。正好，这里有不少纯 CSS3 实现的动画效果。
Loading 动画效果
HTML代码
CSS代码
.spinner {
margin: 100px auto;
width: 50px;
height: 60px;
text-align: center;
font-size: 10px;
}
.spinner > div {
background-color: #67CF22;
height: 100%;
width: 6px;
display: inline-block;
-webkit-animation: stretchdelay 1.2s infinite ease-in-out;
animation: stretchdelay 1.2s infinite ease-in-out;
}
.spinner .rect2 {
-webkit-animation-delay: -1.1s;
animation-delay: -1.1s;
}
.spinner .rect3 {
-webkit-animation-delay: -1.0s;
animation-delay: -1.0s;
}
.spinner .rect4 {
-webkit-animation-delay: -0.9s;
animation-delay: -0.9s;
}
.spinner .rect5 {
-webkit-animation-delay: -0.8s;
animation-delay: -0.8s;
}
@-webkit-keyframes stretchdelay {
0%, 40%, 100% { -webkit-transform: scaleY(0.4) }
20% { -webkit-transform: scaleY(1.0) }
}
@keyframes stretchdelay {
0%, 40%, 100% {
transform: scaleY(0.4);
-webkit-transform: scaleY(0.4);
} 20% {
transform: scaleY(1.0);
-webkit-transform: scaleY(1.0);
}
}
演示：/spinkit/
GitHub：/tobiasahlin/SpinKit
参考案例：/lhb25/p/loading-spinners-animated-with-css3.html
JS + CSS 实现动画特效
GitHub：/ConnorAtherton/loaders.css
案例分享：/loader-css.html
