* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-image: url(https://png.pngtree.com/thumb_back/fh260/background/20211102/pngtree-plain-aesthetic-background-with-cool-wallpaper-image_914477.png);
    font-family: "Teachers", sans-serif;
}

h1 {
    color: red;
    text-align: center;
}

.box {
    border: 4px solid red;
    height: 400px;
    width: 400px;
    padding: 20px 0px 0px 20px;
    margin-bottom: 40px;
}

.blue {
    background: peachpuff;
}

.yellow {
    background: lightgreen;
    margin-bottom: 20px;
}

button {
    padding: 6px 12px;
    border: 2px solid black;
    border-radius: 12px;
    background-color: transparent white;
    cursor: pointer;
}

.yellow button {
    color: white;
    background-color: red;
}