<span> Valid in HTML5
Yes, the <span> element is still valid in HTML5 and is commonly used to apply styling or add inline elements within a block-level element. It does not add any semantic meaning on its own, but it can be useful for targeting specific parts of the content with CSS or for JavaScript manipulation.
Example of <span> Used
<p>This is a <span style="color: green;">green</span> text paragraph.</p>
According to the upper example, the word "green" will be displayed in green because of the inline styling applied to the <span> element.