| <opener> | groups together dateline, byline, salutation, and similar
phrases appearing as a preliminary group at the start of a
division, especially of a letter. | 
| Attributes: |  | 
| Example | <opener><dateline>Walden, this 29. of August 1592</dateline></opener> | 
| Example |  <opener>
   <dateline><name type=place>Great Marlborough Street</name>
   <date>November 11, 1848</date>
   </dateline>
   <salute>My dear Sir,</salute>
</opener>
<p>I am sorry to say that absence from town and other
circumstances have prevented me from earlier enquiring... | 
| Note |  | 
| Tagset | base tag set for common core 
features | 
| Class | divtop | 
| Filename | teistr2 | 
| Parents | back body castList div div0 div1 div2 div3 div4 div5 div6 
div7 epilogue group lg performance prologue | 
| Children | #PCDATA abbr add address app argument att byline c caesura 
cl corr damage date dateRange dateStruct dateline del distinct emph 
epigraph expan foreign formula fw geogName gi gloss handShift hi lang 
link m measure mentioned name num oRef oVar orgName orig pRef pVar 
persName phr placeName ptr ref reg restore rs s salute seg sic signed 
soCalled space supplied tag term time timeRange timeStruct title 
unclear val w xptr xref | 
| Declaration | <!ELEMENT opener        - O  (argument | byline | dateline | 
                             epigraph | salute | signed | 
                             %phrase.seq;)*                     >
<!ATTLIST opener             %a.global                          > | 
| See | 7.2.4  ;  7.2 |