.channel {
    position   : absolute;
    width      : 80%;
    text-align : center;
    top        : 50%;
    left       : 50%;
    transform  : translate(-50%, -200px);
    font-size  : 30px;
    font-weight: bold;
    color      : #fff;
}

.menu_container {
    position: fixed;
    top : 0;
    left: 0;
    z-index    : 9999;
    user-select: none;
}

.menu_container input {
    position: absolute;
    top     : -1100px;
    left    : -1400px;
    opacity : 0;
}

.menu_container .bt {
    position: absolute;
    top     : 30px;
    left    : 30px;
    width : 60px;
    height: 45px;
    z-index: 999;
    cursor: pointer;
    display        : flex;
    justify-content: space-between;
    flex-direction : column;
}

.menu_container .bt span {
    position: relative;
    display: block;
    width : 100%;
    height: 9px;
    left: 0;
    border-radius   : 9px;
    background-color: #fff;
    opacity: 1;
    transition: all 0.5s ease-in-out;
}

.menu_container input:checked~.bt span {
    background-color: #666;
}

.menu_container input:checked~.bt span:nth-child(1) {
    transform: translateY(18px) rotate(-135deg);
}

.menu_container input:checked~.bt span:nth-child(2) {
    transform: translateX(60px);
    opacity  : 0;
}

.menu_container input:checked~.bt span:nth-child(3) {
    transform: translateY(-18px) rotate(135deg);
}

.menu_container .menu {
    position: absolute;
    top : 0;
    left: 0;
    padding-top: 150px;
    width : 300px;
    height: calc(100vh - 150px);
    transform: translateX(-100%);
    background-color: #ededed;
    list-style: none;
    transition: all 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0);
}

.menu_container input:checked~.menu {
    transform : translateX(0px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.5);
}

.menu_container .menu li {

    font-size: 24px;
    margin   : 10px 20px;
    transform: translateX(-50px);
    opacity  : 0;
    text-align: right;
}
.menu_container input:checked~.menu li{
    transition: all 0.2s ease-out calc(var(--i) * 80ms + 200ms);
    transform:  translateX(0px);
    opacity: 1;
}

.menu_container .menu a {
    display: block;
    padding-right: 20px;
    line-height: 60px;
    text-decoration: none;
    color           : #232323;
    background-color: #f1f1f1;
    transition: all 0.3s ease;

}

.menu_container .menu a:hover {
    color           : #f1f1f1;
    background-color: #7591AD;
}