style.css

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    color: #fff;
    font-family: 'Space Grotesk', sans-serif;
    height: 100vh;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    padding: 0;
}

h3,
p,
.btn {
    margin: 5px 0;
}

a {
    text-decoration: none;
    width: inherit;
    height: inherit;
}

.btn {
    display: block;
    border: 1px solid red;
    padding: 5px;
    border-radius: 6px;
    width: 100px;
    text-align: center;
}

.restaurant_card,
.room_card {
    width: 300px;
    height: 300px;
    animation-duration: 2s;
}

img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
    transition: all linear 400ms;
}

img:hover {
    transform: scale(1.2);
    box-shadow: 0 8px 6px -6px rgba(0, 0, 0, .5);
}

.container {
    width: 100%;
    height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.restaurant,
.room {
    display: flex;
}

.restaurant {
    background: url("./img/restaurant.jfif") no-repeat center center;
    background-size: cover;
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
}

.restaurant_overlay:before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(to right, #434343 0%, black 100%);
    opacity: .4;
    z-index: -1;
}

.restaurant_card,
.room_card {
    display: flex;
    align-items: center;
    align-self: center;
    justify-content: center;
    transition: linear 400ms;
    perspective: 1000px;
}

.room {
    background: url("./img/room bg.jpg") no-repeat center center;
    background-size: cover;
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.room_overlay:before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(109.6deg, rgb(20, 30, 48) 11.2%, rgb(36, 59, 85) 91.1%);
    opacity: .4;
    z-index: -1;
}

@media (min-width: 320px) and (max-width: 480px) {
    .container {
        display: flex;
        flex-direction: column;
    }

    .restaurant_card,
    .room_card {
        width: 150px;
        height: 150px;
    }
}