body {
    margin: 0;
    display: flex;
    justify-content: center;
    height: 100vh;
    align-items: center;
    text-align: center;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    overflow: hidden;
}

h1 {
    font-size: 100px;
    color: aliceblue;
    backdrop-filter: brightness(.5);
    letter-spacing: 4px;
}

.btn {
    background-color: black;
    color: white;
    padding: 20px 40px;
    font-size: 25px;
    border: 4px solid;
    cursor: pointer;
    transition: 1s background-color;
}

.btn:hover {
    background-color: white;
    color: black;
}

.split {
    width: 50%;
    height: 100%;
    top: 0;
}

.split.left {
    position: absolute;
    left: 0;
    background-color: pink;
    background-image: url(https://www.aptronixindia.com/media/catalog/product/cache/31f0162e6f7d821d2237f39577122a8a/i/p/iphone_15_pink_pdp_image_position-1__wwen-removebg-preview.png);
    background-size: cover;
}

.split.right {
    position: absolute;
    right: 0;
    background-color: lightblue;
    background-image: url(https://images.samsung.com/is/image/samsung/p6pim/bd/sm-m556blgdbng/gallery/bd-galaxy-m55-5g-sm-m556-sm-m556blgdbng-thumb-542626587?$344_344_PNG$);
    background-size: cover;
}

.active-left .left {
    width: 75%;
}

.active-left .right {
    width: 25%;
}

.active-right .right {
    width: 75%;
}

.active-right .left {
    width: 25%;
}

.left, .right {
    transition: 2s ease-in-out;
}

/* New styles for the "Click here" link */
.whatsapp-link {
    display: inline-block;
    margin-top: 10px;
    padding: 10px 20px;
    color: #007bff; /* Link color */
    text-decoration: none;
    border: 2px solid #007bff; /* Link border */
    border-radius: 5px; /* Rounded corners */
    transition: background-color 0.3s, color 0.3s; /* Transition effect */
}

.whatsapp-link:hover {
    background-color: #007bff; /* Background color on hover */
    color: white; /* Text color on hover */
}