1. CSS Grid Layout (level 1)

    Method of using a grid concept to lay out content, providing a mechanism for authors to divide available space for layout into columns and rows using a set of predictable sizing behaviors. Includes support for all `grid-*` properties and the `fr` unit.

  2. CSS Subgrid

    Feature of the CSS Grid Layout Module Level 2 that allows a grid-item with its own grid to align in one or both dimensions with its parent grid.

  3. ECMAScript 2015 (ES6)

    Support for the ECMAScript 2015 specification. Features include Promises, Modules, Classes, Template Literals, Arrow Functions, Let and Const, Default Parameters, Generators, Destructuring Assignment, Rest & Spread, Map/Set & WeakMap/WeakSet and many more.

  4. HTML templates

    Method of declaring a portion of reusable markup that is parsed but not rendered until cloned.

  5. ES6 Template Literals (Template Strings)

    Template literals are string literals allowing embedded expressions using backtick characters (`). You can use multi-line strings and string interpolation features with them. Formerly known as template strings.

  6. htmltemplateelement api

  7. htmltemplateelement api: content

  8. css property: grid-template

  9. css property: grid-template-areas

  10. css property: grid-template-columns

  11. css property: grid-template-columns: animation of tracks

  12. css property: grid-template-columns: `fit-content()`

  13. css property: grid-template-columns: `masonry`

  14. css property: grid-template-columns: `minmax()`

  15. css property: grid-template-columns: `repeat()`

  16. css property: grid-template-columns: `subgrid`

  17. css property: grid-template-rows

  18. css property: grid-template-rows: animation of tracks

  19. css property: grid-template-rows: `fit-content()`

  20. css property: grid-template-rows: `masonry`

  21. css property: grid-template-rows: `minmax()`

  22. css property: grid-template-rows: `repeat()`

  23. css property: grid-template-rows: `subgrid`

  24. html element: template: shadowroot

  25. grammar: template literals: escape sequences allowed in tagged template literals

  26. ecmascript 2018 (es9)