* {
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
}

.container {
    position: relative;
    width: 100%;
    height: 100vh;
    background: #b604de;
    overflow: hidden;
    display: flex;
}

.sec {
    position: relative;
    width: 50%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sec h2 {
    color: #ffffff;
    font-size: 16vw;
    font-weight: 800;
    line-height: 1em;
}

.sec2 {
    background: purple;
}


#dot {
    position: relative;
    animation: Animation 1s linear infinite;
}

@keyframes Animation {

    0%,
    15% {
        opacity: 0;
    }

    15.1%,
    100% {
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .sec {
        width: 100%;
        height: 100%;
    }

    .sec h2 {
        font-size: 30vw;
    }

}