body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: rgb(53, 52, 52);
}

.col1of3 {
    background-color: rgb(15, 180, 235);
    padding: 5px;
    margin: 20px;
    border-radius: 2px;
    width: 50%;
    height: 45vh;
}
    
.col1of3 h3 {
    text-align: center;
    font-size:x-large;
}

#rainbow-container {
    width: 100%;
    margin-top: 20px;
    display: flex;
    flex-direction: column;
}

.rainbow-strip {
    width: 100%;
    height: 40px;
}

#potOfGold {
    display: none;
    width: 100px;
    height: 100px;
    background-image: url('pot-of-gold.png'); 
    background-size: cover;
    position: absolute;
    top:35%;
    right: 2.25%; 
    z-index: 2; 
}

button {
    color: rgb(15, 180, 235);
    background-color: rgb(53, 52, 52);
    padding: 5px;
}
    
@media (min-width: 768px) {
    .flex-container {
        display: flex;
        justify-content: center;
        align-items: center;
    }
}