.top-title{
    background-color: rgba(0,0,0,0.3);
    color: red;
    text-align: center;
    position: relative;
    height: 6vh;
    line-height: 6vh;
    width: 100vw;
    font-size: 3em;
}
.top-title .back{
    position: absolute;
    top: 0;
    left: 4vw;
}
.top-title .title{
text-align: center;
}
.p-r{
    position: relative;
}
.p-r #thumbnail{
    width: 100vw;
    height: 28vh;
}
.p-r .play{
    width: 20vw;
    height: 10vh;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}
 .video{
    width: 100vw;
    height: 22vh;
    display: none;
}
.bottom-txt{
    display: flex;
    justify-content: space-between;
    padding: 0 1vw;
    height: 10vh;
    line-height: 10vh;
    position: relative;
}
.bottom-txt .bottom-txt-title{
    font-size: 2em;
}
.bottom-txt-time{
    display: inline-block;
    height: 60%;
    color:red;
    font-size: 1em;
    position: fixed;
    bottom: 3vh;
    right: 6vw;
    position: absolute;
    bottom: 2vh;
    right: 1vw;
}