样式1：
<html>
<head>
<style type="text/css">
.loading {
position: fixed;
top: 50%;
left: 50%;
margin-top: -6px;
margin-left: -30px;
} .loading i {
display: inline-block;
float: left;
width: 12px;
height: 12px;
border-radius: 12px;
background-color: #999;
margin: 0 4px;
opacity: .1;
-webkit-animation: flashPop .6s linear alternate infinite both;
animation: flashPop .6s linear alternate infinite both;
} .loading i:nth-of-type(2) {
-webkit-animation-delay: .2s;
animation-delay: .2s
} .loading i:last-child {
-webkit-animation-delay: .4s;
animation-delay: .4s
} @-webkit-keyframes flashPop {
0% {
opacity: 1
} 33% {
opacity: .5
} 66% {
opacity: .1
}
} @keyframes flashPop {
0% {
opacity: 1
} 33% {
opacity: .5
} 66% {
opacity: .1
}
}
</style>
</head> <body>
<div class="loading">
<i></i>
<i></i>
<i></i>
</div>
</body>
</html>
样式2：
<html> <head>
<style type="text/css">
.loading {
position: fixed;
top: %;
left: %;
margin-top: -6px;
margin-left: -30px;
} .loading>i {
float: left;
width: 12px;
height: 12px;
border-radius: 12px;
background-color: #;
display: inline-block;
-webkit-animation: bouncedelay .4s infinite ease-in-out;
animation: bouncedelay .4s infinite ease-in-out;
-webkit-animation-fill-mode: both;
animation-fill-mode: both;
margin: 4px;
} .loading .bounce1 {
-webkit-animation-delay: -.32s;
animation-delay: -.32s;
} .loading .bounce2 {
-webkit-animation-delay: -.16s;
animation-delay: -.16s;
} @-webkit-keyframes bouncedelay {
%,
%,
% {
-webkit-transform: scale(0.0);
} % {
-webkit-transform: scale(1.0);
}
} @keyframes bouncedelay {
%,
%,
% {
transform: scale(0.0);
-webkit-transform: scale(0.0);
} % {
transform: scale(1.0);
-webkit-transform: scale(1.0);
}
}
</style>
</head> <body>
<div class="loading">
<i class="bounce1"></i>
<i class="bounce2"></i>
<i class="bounce3"></i>
</div>
</body> </html>
样式3：
<html> <head>
<style type="text/css">
.loading {
position: fixed;
top: 50%;
left: 50%;
margin-top: -6px;
margin-left: -30px;
} .circle {
-webkit-animation: cui-loading 1.58s linear infinite;
animation: cui-loading 1.58s linear infinite;
-webkit-transform-origin: 50% 50%;
transform-origin: 50% 50%;
opacity: 0;
width: 19px;
height: 19px;
border-left: #c5c5c5 1px solid;
display: block;
border-bottom: #c5c5c5 1px solid;
border-radius: 50%;
} @-webkit-keyframes cui-loading {
0% {
opacity: 1;
-webkit-transform: rotate(0deg)
} 100% {
opacity: 1;
-webkit-transform: rotate(360deg)
}
} @-moz-keyframes cui-loading {
0% {
opacity: 1;
-moz-transform: rotate(0deg)
} 100% {
opacity: 1;
-moz-transform: rotate(360deg)
}
} @-ms-keyframes cui-loading {
0% {
opacity: 1;
-ms-transform: rotate(0deg)
} 100% {
opacity: 1;
-ms-transform: rotate(360deg)
}
} @keyframes cui-loading {
0% {
opacity: 1;
transform: rotate(0deg)
} 100% {
opacity: 1;
transform: rotate(360deg)
}
}
</style>
</head> <body>
<div class="loading">
<span class="circle"></span>
</div>
</body> </html>
样式4：
<html> <head>
<style type="text/css">
.loading {
position: fixed;
top: 50%;
left: 50%;
margin-top: -6px;
margin-left: -30px;
width: 2em;
height: 2em;
color: inherit;
vertical-align: middle;
border: .3em solid #ffffff;
border-top-color: #9C27B0;
border-radius: 50%;
-webkit-animation: 1s flashPop linear infinite;
animation: 1s flashPop linear infinite;
} .loading:before {
content: '';
display: block;
width: inherit;
height: inherit;
position: absolute;
top: -.3em;
left: -.3em;
border: .3em solid #9C27B0;
border-radius: 50%;
opacity: .5;
} @-webkit-keyframes flashPop {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
} @keyframes flashPop {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
</style>
</head> <body>
<div class="loading">
</div>
</body> </html>
