files/en-us/web/css/reference/values/content-position/index.md
The <content-position> {{glossary("enumerated")}} value type is used by {{cssxref("justify-content")}} and {{cssxref("align-content")}} properties, and the {{cssxref("place-content")}} shorthand, to align the box's contents within itself.
<content-position> = center | start | end | flex-start | flex-end
The <content-position> enumerated value type is specified using one of the following key terms.
center
start
end
flex-start
start for layout modes other than flex layout.flex-end
end for layout modes other than flex layout.[!NOTE] The
leftandrightkeywords are excluded from<content-position>, despite being valid positional alignment values for thejustify-*properties ({{cssxref("justify-content")}}, {{cssxref("justify-self")}}, and {{cssxref("justify-items")}}), because they are not allowed in thealign-*properties ({{cssxref("align-content")}}, {{cssxref("align-self")}}, and {{cssxref("align-items")}}). They are instead explicitly included in thejustify-*properties' grammars.
{{Specifications}}
content-position, {{cssxref("overflow-position")}}, and {{cssxref("self-position")}}