To make text bold in HTML, use the <b>…</b> tag or <strong>…</strong> tag. Both the tags have the same functioning, but <strong> tag adds semantic strong importance to the text. The <b> tag is a physical markup element, but do not add semantic importance.
Just keep in mind that you can get the same result in HTML with CSS font-weight property.
Example
You can try to run the following code to make text bold in HTML using <strong>…</strong> tag
Live Demo
<!DOCTYPE html> <html> <head> <title>HTML text bold</title> </head> <body> <h2>Our Products</h2> <p>Developed 10 <strong>Android</strong> apps till now.</p> </body> </html>
Example
You can try to run the following code to make text bold in HTML using font-weight property
Live Demo
<!DOCTYPE html> <html> <head> <title>HTML text bold</title> </head> <body> <h1>Tutorialspoint</h1> <p style="font-weight: bold;">Simply Easy Learning</p> </body> </html>