nie działające transition

0

witam, nie działa mi transition, najeżdżam myszką i nic.., oto kod:
html:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="styles.css">
    <title>Shopping Cart</title>
</head>
<body>
    <header>
        <div class='overlay'></div>
        <nav>
            <h2>SHOP</h2>
            <ul>
                <li><a href="index.html">Home</a></li>
                <li><a href="#">About</a></li>
                <li class='cart'>
                    <a href="cart.html">
                        <ion-icon name='basket'></ion-icon>Cart<span>0</span>
                    </a>
                </li>
            </ul>
        </nav>
    </header>


    <div class='container'>
        <div class='image'>
            <img src="images/championWoBlack.jpg" alt="strongman">
            <h3>1</h3>
            <h3>%15,00</h3>
            <a class='add-cart cart1' href="#">Add Cart</a>
        </div>
        <div class='image'>
            <img src="images/championWoBlack.jpg" alt="strongman">
            <h3>2</h3>
            <h3>%15,00</h3>
            <a class='add-cart cart2' href="#">Add Cart</a>
        </div>
        <div class='image'>
            <img src="images/championWoBlack.jpg" alt="strongman">
            <h3>3</h3>
            <h3>%15,00</h3>
            <a class='add-cart cart3' href="#">Add Cart</a>
        </div>
        <div class='image'>
            <img src="images/championWoBlack.jpg" alt="strongman">
            <h3>4</h3>
            <h3>%15,00</h3>
            <a class='add-cart cart4' href="#">Add Cart</a>
        </div>
    </div>

    <script src="https://unpkg.com/[email protected]/dist/ionicons.js"></script>
</body>
</html>

css:

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

header {
    background-image: url('images/cover.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    height: 150px;
    position: relative;
}

.overlay {
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    height: 100%;
    right: 0;
    padding: 0 !important;
    bottom: 0;
    margin: 0 !important;
    background-color: rgba(10,10,10,0.3);
}

nav {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 2;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 50px 60px 0 60px;
}

nav li {
    list-style: none;
    display: inline-block;
    padding-right: 10px;
    padding-left: 10px;
}

nav li span {
    padding-left: 5px;
}

li a {
    padding: 5px;
    background-color: #fff;
    text-decoration: none;
}

.cart ion-icon {
    vertical-align: bottom;
    font-size: 20px;
    padding-right: 5px;
}

.cart a {
    background-color: royalblue;
    color: #fff;
    cursor: pointer;
    text-decoration: none;
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 50px;
    padding-bottom: 100px;
}

.image {
    margin-right: 20px;
    margin-left: 20px;
    position: relative;
    overflow: hidden;
}

.add-cart {
    position: absolute;
    width: 100%;
    background-color: darkgrey;
    transition:  all 0.3s ease-in-out;
    opacity: 0;
    cursor: pointer;
    text-align: center;
}

.image:hover .cart1,
.image:hover .cart2,
.image:hover .cart3,
.image:hover .cart4 {
    bottom: 50x;
    opacity: 1;
    padding: 10px;
    text-decoration: none;
}
1

.image:hover .cart1,
.image:hover .cart2,
.image:hover .cart3,
.image:hover .cart4 {
bottom: 50x;

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