What is the default behavior of overlay elements?
Answer(s): A
In CSS, when elements overlap, the default behavior is that the last element listed in the HTML document appears on top.Stacking Context:Default Behavior: Elements are stacked in the order they appear in the HTML. The last element in the document tree is rendered on top.z-index: You can control stacking order using the z-index property, but without it, the default order applies.Example:Given HTML:<div style="position: absolute; width: 100px; height: 100px; background-color: red;"></div><div style="position: absolute; width: 100px; height: 100px; background-color: blue;"></div>The blue div will be on top of the red div because it appears later in the HTML document.
MDN Web Docs - Stacking contextW3C CSS Positioned Layout Module Level 3By understanding these fundamental CSS concepts, developers can create more effective and visually appealing web layouts.
Which of the following is true regarding the syntax of the CSS box-shadow property?
Answer(s): D
This question seems to be about a property or method that requires two values. Without additional context, the most common scenario that fits this description is CSS properties that define sizes or positions with two values. Examples include background-position, margin, padding, etc., where both horizontal and vertical values are needed.
MDN Web Docs on Background PositionW3C CSS Backgrounds and Borders Module Level 3
What is a characteristic of JavaScript code?
JavaScript is a scripting language primarily used for creating and controlling dynamic website content. Here are some characteristics:Runs Inside a Web Browser: JavaScript code is executed in the web browser, making it possible to create interactive and dynamic web pages.Cross-Browser Compatibility: JavaScript is designed to be compatible across different web browsers.Interpreted Language: JavaScript is interpreted, meaning it does not need to be compiled before execution.Accessible to Users: JavaScript code is not hidden from the user; it can be viewed in the browser's developer tools.
MDN Web Docs on JavaScriptW3C JavaScript Introduction
How is the JavaScript programming language primarily categorized based on its relationship with objects and inheritance?
Answer(s): B
JavaScript is often described as an object-based language, meaning it is centered around objects. While it supports object-oriented programming (OOP) concepts, it is more accurate to describe it as object-based due to its prototypal inheritance model rather than classical inheritance.Object-Based: JavaScript is built around objects and supports the creation and manipulation of objects.Object-Oriented Features: JavaScript supports OOP principles like encapsulation, inheritance, and polymorphism, but through prototype chains rather than class-based inheritance.Functional and Event-Driven: JavaScript supports functional programming and is often used in an event-driven manner, particularly in the context of web browsers.
MDN Web Docs on JavaScript Object ModelW3C JavaScript Overview
Given the following JavaScript code:What happens when this code is executed?
Answer(s): C
The provided JavaScript code sets a variable x to 6 and then assigns this value to the innerHTML of the HTML element with the id demo.var x;x = 6;document.getElementById("demo").innerHTML = x;Variable Declaration: var x; declares the variable x.Variable Assignment: x = 6; assigns the value 6 to the variable x.DOM Manipulation: document.getElementById("demo").innerHTML = x; finds the element with id demo and sets its innerHTML to the value of x, which is 6.Outcome:The content of the HTML element with the id demo will be changed to 6.
MDN Web Docs on getElementByIdW3C JavaScript DOM Manipulation
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