W3.JS Show
Show Hidden HTML elements
w3.show(selector)
Show Elements Using Element Id
To show an element with a specified id, use a hash tag (#) in front of the id name.
Show an element with id="London":
Show Elements Using Tag Name
To show all elements with a specified tag name, use the tag name (without < and >) as the selector.
Show all <h2> elements:
Show Elements Using Class Name
To show all elements with a specified class name, use a period (.) in front of the class name.
Show elements with class="city":
