body {
    background-color: #e0f7fa;
    font-family: 'Arial', sans-serif;
}

h1 {
    background-color: #00796b;
    color: white;
    padding: 20px;
    text-align: center;
    font-size: 2.5em;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 20px;
}

.grid-item {
    background-color: #b2dfdb;
    border: 1px solid #004d40;
    padding: 20px;
    text-align: center;
}

.flex-container {
    display: flex;
    justify-content: space-around;
    padding: 20px;
}

.flex-item {
    background-color: #bbdefb;
    border: 1px solid #0d47a1;
    padding: 20px;
    width: 30%;
    text-align: center;
}

ul {
    list-style-type: disc;
    padding-left: 20px;
}