body {
    font-family: Arial;
}

header {
    position: relative;
    width: 1000px;
    height: 150px;
    margin: 200px auto;
    padding: 50px;
    background-color: blueviolet;
}

h1 {
    text-align: center;
}

#logo {
    position: absolute;
    top: -50px;
    left: -50px;
    /* display: flex;
    justify-content: center;
    align-items: center; */
    display: grid;
    place-content: center;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background-color: aquamarine;
}

#logo a {
    text-align: center;
    text-decoration: none;
    color: black;
}