app.css

body {
    background-color: #60a9ff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;

    background:
        url("https://images.unsplash.com/photo-1659720879327-827462ca3942?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHx0b3BpYy1mZWVkfDEwfFJfRnluLUd3dGx3fHxlbnwwfHx8fA%3D%3D&auto=format&fit=crop&w=600&q=60")no-repeat top/cover;
}

.heading {
    display: flex;
    flex-direction: column;
    justify-content: center;
    font-size: larger;
    color: #1b4965;
    margin-top: 50px;
    font-style: oblique;
    font-weight: 700;


}

.heading:hover {

    border-color: #faff5c;
    color: brown;
    box-shadow: 0 0.5em 0.5em -0.4em whitesmoke;
    transform: translateY(-0.25em);
    transition: all 1s ease-in-out;
    cursor: pointer;

}

.panel {
    background-color: white;
    border-radius: 10px;
    padding: 15px 25px;
    width: 100%;
    max-width: 960px;
    display: flex;
    flex-direction: column;
    text-align: center;
    text-transform: uppercase;
}

.pricing-plan {
    border-bottom: 1px solid #e1f1ff;
}

.pricing-plan:last-child {
    border-bottom: none;
}

.pricing-img {
    margin-bottom: 25px;
    max-width: 100%;
}

.pricing-header {
    color: #888;
    font-weight: 600;
    letter-spacing: 1px;
}

.pricing-features {
    margin: 50px 0 25px;
    color: #016ff9;
}

.pricing-features-item {
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 12px;
    line-height: 1.5;
    padding: 15px 0;
    border-top: 1px solid #e1f1ff;
}

.pricing-features-item:last-child {
    border-bottom: 1px solid #e1f1ff;
}

.pricing-price {
    color: #016ff9;
    display: block;
    font-size: 32px;
    font-weight: 700;
}

.pricing-button {
    border: 1px solid #9dd1ff;
    border-radius: 10px;
    color: #348efe;
    display: inline-block;
    padding: 15px 35px;
    text-decoration: none;
    margin: 25px 0;
    transition: background-color 200ms ease-in-out;
}

.pricing-button:hover,
.pricing-button:focus {
    background-color: #e1f1ff;
}

.pricing-button.is-featured {
    background-color: #48aaff;
    color: white;
}

.pricing-button.is-featured:hover,
.pricing-button.is-featured:focus {
    background-color: #269aff;
    color: white;
}


@media (min-width: 900px) {
    .panel {
        flex-direction: row;
    }

    .pricing-plan {
        border-bottom: none;
        border-right: 1px solid #e1f1ff;
        padding: 25px 50px;
    }

    .pricing-plan:last-child {
        border-right: none;
    }
}