Hamburger Menu Toggle Animation 3 - SCSS

style.scss

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body{
    background: black;
}

#toggle{
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 10px;
    transition: .5s;
    cursor: pointer;
    display: block;
    width: 60px;
    height: 60px;
    z-index: 2;

    span{
        position: absolute;
        transform: translate(-50%, -50%);
        top: 50%;
        left: 50%;
        width: 40px;
        height: 4px;
        background: white;
        border-radius: 4px;
        display: block;
        transition: .5s;

        &:nth-child(1){
            transform: translate(-50%, -50%) translateY(-14px);
            transition: .8s;
        }
        &:nth-child(4){
            transform: translate(-50%, -50%) translateY(14px);
            transition: .8s;
        }
       
        
    }

    &.active{
        width: 55px;
        transition: .5s;
        span{

            &:nth-child(1){
                transform: translate(-50%, -50%) translateY(-35px);
                opacity: 0;
            }
            &:nth-child(4){
                transform: translate(-50%, -50%) translateY(35px);
                opacity: 0;
            }

            &:nth-child(2){
                transform: translate(-50%, -50%) rotate(45deg);
            }
            &:nth-child(3){
                transform: translate(-50%, -50%) rotate(-45deg);
            }
        }
    }
}

#menu.active{
    left: 0;
}
#menu{
    background: tomato;
    position: absolute;
    left: -100%;
    height: 100vh;
    width: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    margin: 0;
    transition: .4s;
    z-index: 1;

    li{
        list-style: none;
        font-size: 2rem;
        line-height: 2;

        a{
            text-decoration: none;
            font-weight: bold;
            color: white;
        }
    }
}