.game {
    width: 80%;
    margin: auto;
    height: 800px;
    background-color: antiquewhite;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.card {
    width: 200px;
    height: 200px;
    border: 1px solid;
    /* background-color: aqua; */
    background-image: url('/storage/memo/background.jpg');
    background-repeat: no-repeat;
    background-size: 200px auto;
    background-position: center;
}

.back {
    float: left;
    text-decoration: none;
}

body {
    margin: 0;
}

.header {
    width: 99%;
    margin: auto;
    padding: 10px 0px 10px 0px;
    background-color: aqua;
    text-align: center;
}

h1 {
    display: inline;
    /* font-size: large; */
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: darkred;
    text-shadow: 2px 2px #FF0000;
}

.win {
    left: 50%;
    padding: 40px;
    top: 50%;
    border-radius: 50%;
    box-shadow: 10px 10px #FF0000;
    background-color: bisque;
    font-size: xx-large;
    font-family: Arial, Helvetica, sans-serif;
    text-shadow: 1px 1px #555555;
    position: absolute;
    transform: translate(-50%, -50%);
    display: none;
    border: 5px solid #ff00ff;
}