body{
    font-family: sans-serif;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.3s;
}

#ok{
    user-select: none;
}

span{
    display: inline-block;
    font-weight: bold;
    font-size: 3em;
}

.dark{
    background-color: rgb(29, 29, 29);
    color:white;
}

.l {
    animation: expand 1s ease infinite alternate;
}

.o {
    animation: expand 1s 0.1s ease infinite alternate;
}

.a {
    animation: expand 1s 0.2s ease infinite alternate;
}

.d {
    animation: expand 1s 0.3s ease infinite alternate;
}

.i {
    animation: expand 1s 0.4s ease infinite alternate;
}

.n {
    animation: expand 1s 0.5s ease infinite alternate;
}

.g {
    animation: expand 1s 0.6s ease infinite alternate;
}
@keyframes expand {
    0%{
        color:red;
    }

    50%{
        color:#0077ff;
    }

    100%{
        font-size: 5em;
    }
}