body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-align-items: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
}

.grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    max-width: 800px;
}

.grid > .tile {
    flex: 1 1 calc(200px - 10px);
    margin: 5px;
}

.grid {
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    flex-wrap: wrap;
    width: 90%;
    max-width: 800px;
}

.tile {
    color: black;
    text-align: center;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin: 5px;
    -webkit-flex: 1 1 calc(50% - 10px);
    flex: 1 1 calc(50% - 10px);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.tile.youtube {
    background-image: linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5)), url("images/youtube.png");
}

.tile.instagram {
    background-image: linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5)), url("images/instagram.png");
}

.tile.tiktok {
    background-image: linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5)), url("images/tiktok.png");
}

.additional {
    margin: 0;
}