body {
    background-color: rgb(197, 229, 255);
    line-height: 1.5;
    font-family: sans-serif;
    text-align: justify;
    margin: 2em;
    padding: 2em;
    border: solid 2px;

}



h1 {
    text-align: center;
    font-size: 30px;
}

h2 {
    text-align: left;
    color: rgb(0, 117, 133);
    font-size: 30px;
}

button {
    width: 170px;
    height: 40px;
    border-radius: 10px;
    background-color: rgb(197, 229, 255);

    display: block;
    margin: auto;
}

button a {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: rgb(0, 0, 0);
    text-decoration: none;
}

img {
    display: block;
    margin: auto;
    width: 65%;

}

header{
    padding-top: 2em;
}