.blog-details{
    width: 60%;
    margin: auto;
}

.blog-details > p{
    font-size: 17px;
    line-height: 1.8;
    letter-spacing: 1px;
}

@media only screen and (max-width: 600px) {
    .blog-details{
        width: 85%;
        margin: auto;
    }
}