H1 is greater or h2 ? in Web developement

There are six heading tags. From small to large headings one can use any of them to get the size of text which you want. They are called H1 H2 h3 H4 h5 h6. You can use any of these tags to make a text into heading. H1 has the largest size and then decrease as we move toward the h6. So if you need large size choose H1 and if you need smallest heading size choose h6 and you can choose any of them between to get size accordingly.