The fieldset tag is used to group related elements in HTML and XHTML documents. The fieldset tag draws a box around the related elements.
The fieldset tag is used for organizing and grouping related elements within a form. The tag when used the proper way makes HTML and XHTML documents more accessible to nonvisual browsers. When using the fieldset tag the browsers may display a box around the elements within the fieldset tag. The fieldset tag requires an end tag. You can also nest fieldset tags.