Sub.css

:root {
    --light: rgb(242, 241, 241);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: sans-serif;
}

body {
    height: 100vh;
    background: linear-gradient(to bottom, rgba(0,0,0,0), #151515), url(img/bgimage.jpeg);
}

a {
    text-decoration: none;
}

section {
    display: flex;
    justify-content: center;
    min-height: 100vh;
    align-items: center;
    margin: 1rem 0;
}

.pricing-card {
    background: linear-gradient(45deg, #37afea 0%, #5583f1 100%);
    box-shadow: 0 3px 10px rgb(16, 29, 53);
    width: 25%;
    max-width: 300px;
    height: 500px;
    border-radius: 4px;
    transition: all 0.3s ease-out;
}

.pricing-card:nth-child(2) {
    background: #25262d;
    margin: 0 2rem;
    height: 540px;
}

.pricing-card:hover {
    transform: scale(1.03);
}

.pricing-card>div {
    display: flex;
    flex-direction: column;
    padding: 24px;
    align-items: center;
    color: var(--light);
}

.pricing-card>div h3 {
    margin-bottom: 5px;
    font-size: 24px;
}

.pricing-card>div h4 {
    font-size: 40px;
}

.pricing-card div p {
    font-size: 14px;
    margin-bottom: 24px;
}

.pricing-card>div ul {
    margin: 12px 0 32px;
    list-style: none;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pricing-card>div ul li {
    margin-bottom: 10px;
}

svg {
    width: 60px;
    margin: 2rem 0;
}

.btn {
    padding: 12px 0;
    cursor: pointer;
    width: 80%;
    font-size: 24px;
    text-align: center;
    border: none;
    border-radius: 8px;
    transition: border-radius 0.5s;
}

.btn:hover {
    border-radius: 0px;
}

.blue {
    background-color: #3062d5;
    color: var(--light);
}

.primary {
    background-color: #25262d;
    color: var(--light);
}

/*media query*/

@media screen and (max-width:960px) {
    .pricing-card {
        width: 30%;
    }
    .pricing-card:nth-child(2) {
        margin: 0 1rem;
    }
}

@media only screen and (max-width: 768px) {
    section {
        justify-content: flex-start;
        flex-direction: column;
    }
    .pricing-card {
        margin: 1rem 0;
        width: 50%;
    }
}