body {
    background-color: black;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    font-family:monospace;
}

.counter-box {
    display: flex;
    justify-content: center;
    justify-content: space-between;
    align-items: center;
    margin: 250px auto;
    width: 450px;
    background-color: lightseagreen;
    padding: 20px 30px;
    border-radius: 20px;
    box-shadow: 0 0 100px red;
}

.counter-btn {
    font-size: 100px;
    border: none;
    background-color: transparent;
    border: none;
}

.count-value {
    font-size: 100px;
    font-weight: bold;
    color: white;
}