css代码
/#circle { background-color: rgba(0,0,0,0); border:5px solid rgba(10,10,10,0.9); opacity:.9; border-right:5px solid rgba(0,0,0,0); border-left:5px solid rgba(0,0,0,0); border-radius:50px; box-shadow: 0 0 35px #808080; z-index:1000; width:50px; height:50px; margin:0 auto; position:fixed; left:30px; bottom:30px; -moz-animation:spinPulse 1s infinite ease-in-out; -webkit-animation:spinPulse 1s infinite ease-in-out; -o-animation:spinPulse 1s infinite ease-in-out; -ms-animation:spinPulse 1s infinite ease-in-out;}#circle1 { background-color: rgba(0,0,0,0); border:5px solid rgba(20,20,20,0.9); opacity:.9; border-left:5px solid rgba(0,0,0,0); border-right:5px solid rgba(0,0,0,0); border-radius:50px; box-shadow: 0 0 15px #202020; z-index:1000; width:30px; height:30px; margin:0 auto; position:fixed; left:40px; bottom:40px; -moz-animation:spinoffPulse 1s infinite linear; -webkit-animation:spinoffPulse 1s infinite linear; -o-animation:spinoffPulse 1s infinite linear; -ms-animation:spinoffPulse 1s infinite linear;}@-moz-keyframes spinPulse { 0% { -moz-transform:rotate(160deg); opacity:0; box-shadow:0 0 1px #505050;} 50% { -moz-transform:rotate(145deg); opacity:1; } 100% { -moz-transform:rotate(-320deg); opacity:0; }}@-moz-keyframes spinoffPulse { 0% { -moz-transform:rotate(0deg); } 100% { -moz-transform:rotate(360deg); }}@-webkit-keyframes spinPulse { 0% { -webkit-transform:rotate(160deg); opacity:0; box-shadow:0 0 1px #505050; } 50% { -webkit-transform:rotate(145deg); opacity:1;} 100% { -webkit-transform:rotate(-320deg); opacity:0; }}@-webkit-keyframes spinoffPulse { 0% { -webkit-transform:rotate(0deg); } 100% { -webkit-transform:rotate(360deg); }}@-o-keyframes spinPulse { 0% { -o-transform:rotate(160deg); opacity:0; box-shadow:0 0 1px #505050; } 50% { -o-transform:rotate(145deg); opacity:1;} 100% { -o-transform:rotate(-320deg); opacity:0; }}@-o-keyframes spinoffPulse { 0% { -o-transform:rotate(0deg); } 100% { -o-transform:rotate(360deg); }}@-ms-keyframes spinPulse { 0% { -ms-transform:rotate(160deg); opacity:0; box-shadow:0 0 1px #505050; } 50% { -ms-transform:rotate(145deg); opacity:1;} 100% { -ms-transform:rotate(-320deg); opacity:0; }}@-ms-keyframes spinoffPulse { 0% { -ms-transform:rotate(0deg); } 100% { -ms-transform:rotate(360deg); }}