@media screen and (min-width: 800px) {

    #first {
        width: 30em;
        text-align: center;
        margin-left: auto;
        margin-right: auto;


    }
}


#first {
    margin-bottom: 50em;
    background-color: rgba(0, 0, 0, 0.623);
    border-radius: 1em;
    color: aliceblue;
    padding: 2em;
    font-size: 1.5em;
}

#first a {
    color: rgb(255, 0, 242);
}

body {
    background-image: url("img/background.png");
    background-attachment: fixed;
    background-color: rgb(255, 255, 255);
    animation-name: colorchange;
    animation-iteration-count: infinite;
    animation-duration: 2s;
    animation-direction: alternate;
}


@keyframes colorchange {
    from {
        background-color: rgb(255, 0, 255);
    }

    to {
        background-color: rgb(112, 202, 255);
    }

}