* {
            margin: 0px;
            padding: 0px;
            background-color: black;
            box-sizing: border-box;
            font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 
                 Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
        }                
        h1 {
            color: white;
            font-size: 150px;
            text-align: center;
        }
        h2 {
            color: white;
            font-size: 100px;
            text-align: center;
        }
        h3 {
            color: white;
            text-align: center;
            font-size: 75px;
        }
        h4 {
            color: white;
            text-align: center;
        }
        p {
            color: white;
            font-size: 75px;
            line-height: 34px;
            text-align: center;
        }
        .flex-container {
            display: flex;
            justify-content: space-evenly;
        }
        img {
            border-radius: 50%;
            width: 450px;
            height: 450px;
        }
        footer {
            color: white;
            font-size: 50px;
        }