* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: black;
    color: white;
}

body {
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
}

header a {
    text-decoration: none;
}
header a:hover {
    text-decoration: underline;
}

h1 {
    font-weight: 200;
}

div {
    color: black;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 100px;
}

/*smaller screen body widths */
@media (max-width: 900px) {
    main {
        width: 90vw;
    }
    .popover-content {
        max-width: 80vw;
    }
}

.solid {
    background-color: white;
    padding: 1rem;
    width: 400px;
    margin-top: 50px;
    position: sticky;
    top: 50px;
    text-align: center;
    border: 1px solid white;
    font-size: 1px;
    transition: font-size 0.1s linear;
}