* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    width: 100vw;
    height: 100vh;
    margin: 0;
    padding: 0;
    background: white;
    font-family: Helvetica, Arial, sans-serif;
    font-size: 18px;
    color: #393939;
    overflow: hidden;
}
@media (min-width:700px) {
  body {
    background: hsl(230, 40%, 93%);
  }
}
#container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100vw;
    height: 100vh;
    text-align: center;
}
#box {
    margin: 0;
    width: 80vw;
    height: 80vh;
    background: red;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    border-radius: 8px;
}
#message {
    margin-top: 10px;
    font-size: 1.2rem;
}
#reset {
    margin-top: 15px;
    padding: 10px 20px;
    font-size: 1rem;
    cursor: pointer;
}
@media (max-width: 600px) {
    #box {
        height: 150px;
    }
}