* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-image: url('R-min.png');
    background-position: top;
    background-repeat: no-repeat;
    background-size: cover;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    font-family: 'Castellar';
}

.black-shade {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    width: 100%;
    height: 100%;
    z-index: -1;
}
.countdown-container {
    display: flex;
}

.big-text {
    font-size: 4rem;
}
.title {
    margin: 10px;
    text-align: center;
    color: #ffff;
    width: 100%;
    letter-spacing: 2px;
    font-size: 3rem;
    line-height: 5.5rem;
}
.title span {
    display: block;
    font-size: 6rem;
    letter-spacing: 2rem;
}
.all-content {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    min-height: 100vh;
}
.countdown-container > div {
    margin: 0 2rem;
    text-align: center;
    border: 2px solid #fff;
    padding: 0 20px;
    border-radius: 15px;
    box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.6);
    box-sizing: border-box;
    color: white;
    min-width: 150px;
}

@media (max-width: 992px) {
    .countdown-container > div {
        margin: 0 1rem;
    }
}
@media (max-width: 767px) {
    .countdown-container {
        flex-wrap: wrap;
    }
    .countdown-container > div {
        margin: 1rem auto;
        max-width: 150px;
    }
    .title {
        font-size: 1.5rem;
        line-height: 3.5rem;
        margin: 10px 0px;
    }
    .title span {
        font-size: 4rem;
        letter-spacing: 1rem;
    }
}