.card-body{
    /*grey background with opacity 0.2*/
    background-color: rgba(128, 128, 128, 0.2);
    border: none;
    border-radius: 10px;
    /*fit page with equal left and right margins*/
    margin-bottom: 2%;
    margin-right: 0%;
}

.card-mb-4{
    border: none;
}
.card-title, .card-text, .blog-text{
    color: black;
    margin-right: 0%;
}

img {
    max-height: 300px;
    max-width: auto;
    display: block;
    margin-left: auto; 
    margin-right: auto;}