*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html, body{
    height: 100%;
    width: 100%;
   
}
.top{
    width: 100%;
    background-color: navy;
    color: white;
    text-align: center;
    padding: 10px 0;
}
    #main{
    min-height: 100vh;
    width: 100%;
    background-color: lightblue;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}


.card{
    height:150px;
    width:90px;
    background-color: white;
    border-radius: 10px;    
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    border:solid 2px black;
    margin-top:10px;
    margin-left:10px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.card img {
    width: 100%;
    object-fit: cover;   /* keeps image inside card nicely */
    border-radius: 8px;
}