The text-align property describes how the inline-level content of a block is aligned along the inline axis if the content does not completely fill the line box.
object.style.textAlign = "value";
<'text-align'> = start | end | left | right | center | justify | match-parent | justify-all
Inline-level content is aligned to the start edge of the line box.
Inline-level content is aligned to the end edge of the line box.
Inline-level content is aligned to the line left edge of the line box.
Inline-level content is aligned to the line right edge of the line box.
Inline-level content is centered within the line box.
Text is justified according to the method specified by the text-justify property, in order to exactly fill the line box.
Behaves the same as inherit except that an inherited value of start or end is interpreted against the parent's direction value and results in a computed value of either left or right.
Sets both text-align-all and text-align-last to justify, forcing the last line to justify as well.
World Wide Web Consortium (W3C)