HTML5 Details tag Summary section (click this line to view details)

Details tag is one of the new HTML5 tabs.
Web developers can use HTML5 Details tag to display additional information to the user which is hidden by default.
When the web user clicks on the Details tag summary text which is enclosed by <summary> and </summary> tags, the hidden additional description is visible to the user.
When the user clicks on summary text once more, the details text visibility toggles between visible and hidden status.

HTML5 developers can create table within details tag

cell 1cell 2

For HTML hide and display table row sample, web developers can review given code at display and hide table row using JavaScript and Style properties