Code:
<!DOCTYPE HTML><HTMLLang= "en"><Head><MetaCharSet= "UTF-8"><title>Document</title><style>#box{position:relative;margin:100px;}#box span{Display:Block;width:20px;Height:20px;position:Absolute;Background-color:#3498db;Opacity:0.5;Border-radius:50%;-webkit-animation:preloader 1s infinite ease-in-out;}#box Span:nth-child (2){ Left:20px;-webkit-animation-delay:0.2s;}#box Span:nth-child (3){ Left:40px;-webkit-animation-delay:0.4s;}#box Span:nth-child (4){ Left:60px;-webkit-animation-delay:0.6s;}#box Span:nth-child (5){ Left:80px;-webkit-animation-delay:0.8s;}@-webkit-keyframes Preloader{0%{opacity:0.3;-webkit-transform:Translatey (0px);Box-shadow:0px 0px 3px rgba (0,0,0,0.1);}50%{Opacity:1;-webkit-transform:Translatey ( -10px);Box-shadow:0px 20px 3px rgba (0,0,0,0.05);Background-color:#f1c40f;}100%{Opacity:0.3;-webkit-transform:Translatey (0px);Box-shadow:0px 0px 3px rgba (0,0,0,0.1);}}</style></Head><Body> <DivID= "box"> <span></span> <span></span> <span></span> <span></span> <span></span> </Div></Body></HTML>
:
CSS3 Loading Effect 3