body {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    height: 100vh;
    background-color: yellow;
}

div {
    width: 50%;
}

p {
    font-size: 1.2rem;
    text-align: center;
    width: 100%;
    padding: 0;
    margin-top: 1rem;
}

img {
    width: 250px;
    border: 2px solid black;
    border-radius: 100%;
}

h1 {
    color: white;
}

a {
    color: yellow;
}

h3 {
    margin-left: 15px;
    margin-right: 15px;
}


@media only screen and (max-width: 1000px) {
    body {
      flex-direction: column;
      background-color: black;
    }
    h1,h2,h3,p {
        color: white;
    }
  }