*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
}

.square{
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

h1{
    color: #333;
    margin-bottom: 60px;
}

iframe{
    width: 80%;
    height: 500px;
}