body{
    margin: 0;
    padding: 0;
    background: #000;
}
.container{
    width: 100%;
    height: 55vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #000;
}
span{
    font-family: fira code;
    font-size: 10em;
    filter: blur(2px);
    color: #fff;
    animation: animate 2.5s linear infinite;
}
span:nth-child(1){
    animation-delay: 0s;
}
span:nth-child(2){
    animation-delay: 0.25s;
}
span:nth-child(3){
    animation-delay: 0.5s;
}
span:nth-child(4){
    animation-delay: 0.75s;
}
span:nth-child(5){
    animation-delay: 1s;
}
span:nth-child(6){
    animation-delay: 1.25s;
}
span:nth-child(7){
    animation-delay: 1.5s;
}
span:nth-child(8){
    animation-delay: 1.75s;
}
span:nth-child(9){
    animation-delay: 2s;
}

@keyframes animate{
    0%,100%{
        filter: blur(2px);
        color: #fff;
        text-shadow: 0 0 10px #1e90ff,
        0 0 20px #1e90ff,  
        0 0 30px #1e90ff,  
        0 0 40px #1e90ff,        
        0 0 100px #1e90ff,  
        0 0 200px #1e90ff,  
        0 0 300px #1e90ff,  
        0 0 400px #1e90ff;
    }
    5%,95%{
        filter: blur(0px);
        color: #666;
        text-shadow: none;
    }
}