2>css代码展示
*{
padding: 0;
margin: 0;
}
input{
outline: none;
}
.barrage {
position: relative;
width: 100%;
height:250px;
}
#myvideo{
position: absolute;
/* width: 100%;
height:300px; */
top: -50px;
left: 0;
z-index: -1;
}
.barrage .screen {
position: absolute;
top: 0px;
right: 0px;
width: 100%;
height: 300px;
}
.barrage .screen .content {
position: relative;
width: 100%;
height: 250px;
background: #000;
opacity:0.5;
/* filter: alpha(opacity=100); *//***针对ie8以上或者更早的浏览器****/
background-color: transparent;
z-index: 1;
}
.barrage .screen .content div {
position: absolute;
font-size: 20px;
font-weight: bold;
white-space: nowrap;
line-height: 40px;
z-index: 40;
}
.barrage .send {
position: absolute;
bottom: 0px;
width: 100%;
height: 55px;
line-height: 55px;
z-index: 1;
/*background: #000;*/
background: rgba(0,0,0,0.5);
text-align: center;
/*display: none;*/
}
.barrage:hover .send{
display: block;
}
.barrage .send .s_text {
width: 60%;
height: 35px;
line-height:35px;
font-size: 16px;
font-family: "微软雅黑";
border-radius:20px;
opacity: 0.8;
}
.barrage .send .s_btn {
width: 105px;
height: 35px;
line-height: 35px;
background: #22B14C;
color: #fff;
border-radius: 10px;
opacity: 0.8;
}
.barrage_close,#muted {
width: 80px;
height: 30px;
line-height: 30px;
border-radius: 10px;
text-align: center;
color: #22B14C;
background:#fff;
cursor: pointer;
opacity: 0.8;
}
#muted{
background:yellow;
}
.barrage_close1{
color: #fff;
background: #fff;
}
/* css动画 */
.content div{
animation:Text 15s infinite normal;
}
@keyframes Text{
0%{
left:100%;
}
20%{
left:75%;
}
80%{
left:0%;
}
100%{
left:-30%;
}
}3>js代码展示
$(function () {
$(".barrage_close").click(function(){
$(".content div").remove();
});
init_barrage();
});
//将弹幕内容放进数组贮存起来
var arr=[];
var h=arr.push();
// 监听发送，按enter发送
document.οnkeydοwn=function(event){
var e = event || window.event;
if(e && e.keyCode==13){
// console.log(11111);
$(".send .s_btn").click();
}
};
//提交评论
$(".send .s_btn").click(function () {
var text = $(".s_text").val();
if (text == "") {
alert('你的内容为空，请填写评论在再发送');
return false;
}
var _lable = $("" + text + "");
$(".content").append(_lable.show());
init_barrage();
$(".s_text").val("");
});
//初始化弹幕技术
function init_barrage() {
var _top = 0;
$(".content div").show().each(function () {
var _left =$(".barrage").width();//浏器览最大宽度（也是浏览器的高度），作为定位left的值
console.log(_left);
var _height =$(".barrage").height();//视频窗口的最大高度
console.log(_height);
_top += 35;
if (_top >= (_height - 150)) {
_top = 0;
}
$(this).css({ left: _left, top: _top, color: getColor() });
//定时弹出文字
// var time = 10000;
// if ($(this).index() % 2 == 0) {
// time = 15000;
// }
// $(this).animate({ left: "-" + _left + "px" }, time, function () {
// $(this).remove();
// });
});
}
//获取随机颜色
function getColor() {
return '#' + (function (h) {
return new Array(7 - h.length).join("0") + h
})
((Math.random() * 0x1000000 << 0).toString(16))
}
var video=document.getElementById("myvideo");
var mute=document.getElementById("muted");
console.log(muted);
//设置视频播放速度
// video.playbackRate = 0.5;
//视频静音
video.muted = false;
mute.οnclick=function(){
if(video.muted){
video.muted = false;
mute.innerText='';
mute.innerText = '开启静音';
// console.log(1111)
}else{
video.muted = true;
mute.innerText='';
mute.innerText = '关闭静音';
// console.log(2222)
}
} 3.代码效果演示