<htmlelement style="text-align:center;" ...>...</htmlelement>
Where:
-htmlelement IS the HTML element in question.
-... IS other HTML code that you might have
Explanation:
-the STYLE attribute is used to provide inline CSS styling (CSS stands for Cascading Style Sheet, a form of styling in HTML)
-the "text-align" name is the CSS attribute name
-the ":" is the division between the name and value
-the "center" is the CSS attribute value
-the ";" is the mark that signifies the end of the CSS attribute