:root{
    --bg1:#9b59b6;
    --bg2:#3498db;
    --text:#26ade4;
}
*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body{
    background-image: url("tet.png");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.container {
    text-align: center;
    color: orange;
    text-shadow: 0 0 25px rgb(0, 0, 0),
                 0 0 50px rgb(0, 0, 0),
                 0 0 100px rgb(0, 0, 0),
                 0 0 300px rgb(0, 0, 0);
}
.countdown {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}
.item{
    margin-right: 20px;
    height: 120px;
    width: 120px;
    border: 2px solid var(--text);
    display: flex;
    flex-direction: column;
    border-radius: 20%;
    justify-content: center;
    color: orange;
}
.item span{
    font-weight :bold;
    font-size: 32px;
    margin-top: 12px;
}
.thoigian{
    font-size: 200%;
}