Blog post setting - align left, and max width

Blog post setting - align left, and max width

In blog post customizer, add css:
Idea
.blog-post-content {
  max-width: 100%;
}
h2 {
  font-size: 28px;
}
h3 {
  font-size: 22px;
}
.blog-post-content img {
  max-width: 350px;
}
.blog-post-comments-container {
  max-width: 100%;
  padding-top: 30px;
}
.blog-post-comments__form-container {
  max-width: 50%;
  margin-left: 0;
}