Experience with web development languages of HTML, CSS and JavaScript/jQuery.
HTML
Familiarity of HTML syntax for multiple specifications, including HTML 5.
Knowledge of the semantic meaning of all HTML elements.
Familiarity with the semantic markup for display of lists, tabular data, forms, articles, etc.
Knowledge of markup used for layout such as dividers.
Knowledge at the level to be able to hand-code markup.
Including media and images.
CSS
Specifying different CSS for various media, devices and displays.
Best practices in CSS file organization and structure.
Methods for including CSS inline, internal and external via linked style sheets.
How to define, combine and group CSS selectors for HTML elements, ID, classes, pseudo classes, child or sibling.
Syntax of CSS declarations, properties and attributes.
CSS box model and methods for CSS positioning, absolute and relative.
Knowledge of properties and attributes to control the display.
Familiarity with differences in CSS 2 and CSS 3.
Proficient with a CSS Preprocessor such as Sass or LESS.
JavaScript
Knowledge of the operators, variables, datatypes, objects, properties and methods.
Familiarity with control structures such as objects, functions, conditional statements, arrays, loops and expressions.
Forms and regular expression validation and submitting data.
Knowledge of how to apply logical operators and conditional statements.
Knowledge of the DOM HTML objects and their properties.
jQuery
Knowledge of how to employ the jQuery library for visual effects, event handling, and document manipulation.