STRUC_255 is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Contains HTML for WWW client" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_STRUC_255 TYPE STRUC_255.
The STRUC_255 table consists of various fields, each holding specific information or linking keys about Contains HTML for WWW client data available in SAP. These include LINE ()... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .