Elements that have a set width become wider when they have padding and/or border-width. To avoid these problems, make use of the now common box-sizing: border-box; reset.
The element in HTML is used for displaying tabular data. You can think of it as a way to describe and display data that would make sense in spreadsheet sof
Show multiple parent-child relationships in an expandable, hierarchical data grid that stands as the backbone of your data-centric JavaScript-based client applications. Users can drill down, as well as add, edit, delete, select, sort, group and filter rows using their mouse or keyboard.