Answer 1

Not blog elements :)
Block elements.

In HTML, most elements are defined as block level or inline elements.
Block level elements start from a new line.
For example: <h1>, <form>, <li>, <ol>, <ul>, <p>, <pre>, <table>, <div>, etc.

Inline elements are normally displayed without line breaks.
For example: <b>, <a>, <strong>, <img>, <input>, <em>, <span>, etc.