style.css

/* ---------
top section
------------ */
body{
    background-color: lightblue;
}
section{
    background-color: white;
    border-radius: 20px;
    padding-left: -30px;
    padding-right: -30px;
}
.author-details img{
    height: 60px;
}
.author-details{
    display: flex;
    align-items: center;
}
.author-info{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 50px;
    place-items: center;
}
.name-adjust{
    margin-left: 20px;
}
.heading-highlight{
    color: forestgreen;
    margin-left: 30px;
}
.blogs{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 50px;
}
.blog{
    display: flex;
    margin-left: 5%;
}
.blog img{
    width: 250px;

}
.blog-details{
    margin-left: 3%;
}
.anchor-style{
    text-decoration: none;
    font-weight: 700;
    color: white;
    background-color: green;
    border-radius: 20px;
    padding: 5px;
}
.course img{
    width: 300px;
}
.courses{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 50px;
    margin-left: 2%;
}
.fas.fa-star{
    color: gold;
}
.fas.fa-star-half-alt{
    color: gray;
}
.clock-highlight{
    background-color: hotpink;
    width: 20%;
    padding: 8px;
    border-radius: 20px;
}
@media screen and (max-width:688px) {
    .author-info, .blogs, .courses {
        grid-template-columns: repeat(1, 1fr);
    }
}

@media only screen and (min-width:689px) and (max-width:992px) {
    .author-info, .blogs, .courses {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media only screen and (min-width:993px) and (max-width:1312px) {
    .author-info, .blogs, .courses {
        grid-template-columns: repeat(3, 1fr);
    }
}