/* Date */

.blog-post__timestamp {
  display: block;
  margin-bottom: 0.7rem;
}

/* Author */

.blog-post__author {
  display: flex;
  margin-bottom: 1.4rem;
  align-items: center;
}

.blog-post__author-image {
  height: auto;
  width: 50px;
  margin-right: 0.7rem;
}

.blog-post__author-name,
.blog-post__author-name:hover,
.blog-post__author-name:focus,
.blog-post__author-name:active {
  text-decoration: none;
}

/* Content */

.blog-post__body img {
  height: auto;
  max-width: 100%;
}
/* Comments */

.blog-comments .hs-submit {
  text-align: center;
}

.blog-comments .comment-reply-to {
  border: 0 none;
}

.blog-comments .comment-reply-to:hover,
.blog-comments .comment-reply-to:focus,
.blog-comments .comment-reply-to:active {
  background-color: transparent;
  text-decoration: underline;
}
<style>
  .blog-post__featured-image {
    width: 700px;
    height: auto;
    display: block;
    margin: 0 auto 20px;
  }
</style>