笼罩层-加载中 jq
上图

上代码
jq代码:
loadingFn()
function loadingFn(){
var html = '<div class="loading hiding" id="loading">'+
'<div class="pswp__preloader__icn">'+
'<div class="pswp__preloader__cut">'+
'<div class="pswp__preloader__donut"></div>'+
'</div>'+
'</div>'+
'</div>';
var obj=$(html);
obj.appendTo(document.body);
}
css样式:
.loading{
position:fixed;
top:0px;
bottom:0;
right:0;
left:0;
background-color: #424040;
opacity: 0.4;
z-index: 99000;
}
.pswp__preloader__icn {
opacity: 0.75;
width: 35px;
height: 35px;
-webkit-animation: clockwise 500ms linear infinite;
animation: clockwise 500ms linear infinite;
position: fixed;
left:50%;
top:50%;
margin-left: -26px;
}
/* The idea of animating inner circle is based on Polymer loading indicator by Keanu Lee https://blog.keanulee.com/2014/10/20/the-tale-of-three-spinners.html */
.pswp__preloader__cut {
position: relative;
width: 12px;
height: 24px;
overflow: hidden;
position: absolute;
top: 0;
left: 0;
}
.pswp__preloader__donut {
box-sizing: border-box;
width: 35px;
height: 35px;
border: 2px solid #b5b2b2;
border-radius: 50%;
border-left-color: transparent;
border-bottom-color: transparent;
position: absolute;
top: 0;
left: 0;
background: none;
margin: 0;
-webkit-animation: donut-rotate 1000ms cubic-bezier(.4, 0, .22, 1) infinite;
animation: donut-rotate 1000ms cubic-bezier(.4, 0, .22, 1) infinite;
}
@-webkit-keyframes clockwise {
0% {
-webkit-transform: rotate(0deg)
}
100% {
-webkit-transform: rotate(360deg)
}
}
@keyframes clockwise {
0% {
transform: rotate(0deg)
}
100% {
transform: rotate(360deg)
}
}
@-webkit-keyframes donut-rotate {
0% {
-webkit-transform: rotate(0)
}
50% {
-webkit-transform: rotate(-140deg)
}
100% {
-webkit-transform: rotate(0)
}
}
@keyframes donut-rotate {
0% {
transform: rotate(0)
}
50% {
transform: rotate(-140deg)
}
100% {
transform: rotate(0)
}
}

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