*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: 'Poppins', sans-serif; /* Font chữ Poppins */
    display: flex;
    justify-content: center;
    align-items: center;
    width: auto;
    height: auto; 
    flex-wrap: wrap;
    overflow: auto; 
    overflow-y: scroll;     

}