body {
    display: block;
    justify-content: space-around;
    height: 100vh;
    color: blue;
    width: 50%;
    border-radius: 10px;
    background-image: url('https://source.unsplash.com/1600x900/?nature,landscape');
    background-color: gray;
}

body .jumbotron {
    flex-direction: column;
    border-radius: 30px;
    padding: 2em;
    width: 20%;
    color: chartreuse;
}

body h1 {
    font-size: 300%;
}

body .button {
    border: none;
    outline: none;
    padding: 10px;
    height: 30px;
    width: 60px;
    border-radius: 20;
}

button:hover {
    background-color: crimson;
}

body .form {
    border: none;
    outline: none;
    padding: 1em 1.5em;
    border-radius: 20px;
    color: black;
    width: 100%;
    font-family: sans-serif;
    font-size: 130%;
}