:root {
    --blue: #0064A6;
    --darkblue: #034275;
    --white: #ffffff;
    --gray: #c9d0cd;
    --darkgray: #a8aba8;
}

body {
    background-color: var(--blue);
}


header {
    text-align: center;
    line-height: 45px;
    background-color: var(--blue);
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    color: var(--white);
}

header a {
    color: inherit;
    text-decoration: none;

}

main {
    width: 30%;
    margin: 15vh auto 0;
}

.card {
    margin-bottom: 5px;
}

#propose {
    display: none;
}

#propose button {
    margin-right: 5px;
}

@media only screen and (max-device-width: 450px)  {
    main {
        width: 96%;
        margin: 10vh auto 0;
    }

}