*{
    margin: 0;
    padding: 0;
    list-style: none;
}
video{
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
    height: auto;
    width: auto;
}
.enter{
    width: 100%;
    height: 50px;
    position: fixed;
    bottom: 180px;
    left: 0;
}
.enter .en_p{
    position: relative;
    margin: 0 auto;
    width: 154px;
    height: 40px;
    font-size: 30px;
    text-align: center;
    line-height: 40px;
    color: #0085E9;
    text-decoration: none;
    border: 1px solid #0085E9;
    border-radius: 20px;
    cursor:pointer;
}
.en_p:hover{
    color: #fff;
}
.en_p:after{
    width: 0;
    cursor:pointer;
    position: absolute;
    content: "";
    top: 0;
    bottom: 0;
    left: 0;
    z-index: -1;
    background: #0085E9;
    transition: 0.6s linear;
}
.en_p:hover:after{
    width: 154px;
    height: 40px;
    border-radius: 20px;
}

.muted{
    position: fixed;
    top: 100px;
    right: 100px;
    background: #f12e2e;
    font-size: 20px;
    width: 100px;
    height: 50px;
    color: #ffffff;
    text-align: center;
    line-height: 50px;
}