* {
    box-sizing: border-box;
}

body, html {
    height: 100%;
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;  
}

.bg-image {
    background-image: url(pexels-pixabay-264502.jpg);
    filter: blur(2px);
    -webkit-filter: blur(2px);
    height: 100%;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.container {
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0, 0.5);
    color: white;
    font-weight: bold;
    border: 3px solid #f1f1f1;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    width: 80%;
    padding: 20px;
    text-align: center;
    border-radius: 10px;
}


h2 {
    font-size: 3.5rem;
    margin-top: 0;
    margin-bottom: 20px;
}

h3 {
    font-size: 1.7rem;
}

button {
    border: none;
    padding-top: 10px;
    padding-bottom: 10px;
    color: white;
    font-weight: bold;
    width: 130px;
    margin-bottom: 5px;
    border-radius: 5px;
    margin-right: 20px;
}

#increment-btn {
    background: #fff;
    color: #333;
    
}

#save-btn {
    background: #0287ff;
}

footer {
    font-size: 0.8rem;
    margin-top: 50px;
    text-decoration: none;
}

footer > a {
    text-decoration: none;
    color: white;
    
}