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弹幕效果

<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    <title>仿弹幕效果</title>    <style>    *{margin: 0;padding: 0;list-style: none;}        html,body{width: 100%;height: 100%;}    body{background-color: #000;font-family: ‘微软雅黑‘;}    #danmu{position: relative;height: 100%;width: 100%;overflow: hidden;font-size: 50px;}    #danmu .newli{background-color: #fff;height: 50px;line-height: 50px;position: absolute;overflow: hidden;}    </style></head><body>    <div id="danmu"></div>    <script>        var danmu=document.getElementById(danmu);        var winH=danmu.clientHeight;        var speak=[哇塞好牛逼啊,好帅啊,前方高能,hahahahaha,哈哈哈哈,风流倜傥,我爱你阿啊啊啊,哈哈哈];        function insert(){            var newli=document.createElement(div);            var randomS=Math.floor(Math.random()*8);            var r=Math.floor(Math.random()*266);            var g=Math.floor(Math.random()*266);            var b=Math.floor(Math.random()*266);            newli.innerHTML=speak[randomS];            newli.className=newli;            newli.style.color=rgb(+r+,+g+,+b+);            var t=winH-50;            var newliT=Math.floor(Math.random()*(t-1));            var newliL=danmu.clientWidth;            newli.style.left=newliL+px;            newli.style.top=newliT+px;            danmu.appendChild(newli);            move(newli);        }        function move(obj){            var timer1=setInterval(function(){                // var danmu=document.getElementById(‘danmu‘);                var newliW=obj.clientWidth;                var run=obj.offsetLeft;                run--;                if (run<=-newliW) {                    danmu.removeChild(obj);                    clearInterval(timer1);                }                obj.style.left=run+px;            },1)         }         // insert();         var timer2=setInterval(function(){             insert();         },1000);        window.onfocus=function (){            clearInterval(timer2);            timer2=setInterval(function(){                insert();            },1000);      }      window.onblur=function (){            clearInterval(timer2);        }    </script></body></html>

 

弹幕效果