div.img {
    border: 1px solid #808080;
    margin: 10px;
    padding: 30px;
}

div.img:hover {
    border: 1px solid #777;
    margin: 10px;
    padding: 30px;
    background-color: #0F5F9C;
}

div.img img {
    width: 100%;
    height: auto;
}

div.desc {
    padding: 15px;
    color: #F0F0F0;
    text-align: center;
}

* {
    margin: 10 auto;
    box-sizing: border-box;
    text-align: center;
}

.responsive {
    border: 0px solid #808080;
    padding: 0 6px;
    float: left;
    width: 24.99999%;
    aspect-ratio: 1 / 1;
}

@media only screen and (max-width: 700px){
    .responsive {
        width: 49.99999%;
        margin: 6px 0;
    }
    
    div.img {
        border: 1px solid #808080;
        margin: 20px;
        padding: 50px;
    }
}

@media only screen and (max-width: 480px){
    .responsive {
        width: 100%;
    }
}

.clearfix:after {
    content: "";
    display: table;
    clear: both;
}