Layout Coding Challenges

Definition

Live whiteboard or sandbox coding challenges where you must recreate a specific visual layout using only vanilla HTML and CSS.

Explain Like I'm New

The interviewer shows you a picture of a UI component (like a Twitter tweet card or a Navigation bar) and says: 'Build this in 10 minutes'.

Real World Example

Building the Holy Grail Layout (Header, Footer, Left Sidebar, Main Content, Right Sidebar).

Common Use Cases

•Live coding rounds in interviews

Interactive Example

Interview Questions

basic

How do you perfectly center a `div` both vertically and horizontally?

intermediate

How do you make a footer stay at the absolute bottom of the screen, even if there is very little content on the page?

Flash Cards

Question

Center a div?

Click to reveal answer

Answer

Apply `display: flex; justify-content: center; align-items: center;` to the parent container.

Question

Sticky footer?

Click to reveal answer

Answer

Make the `<body>` a flex container with `min-height: 100vh; flex-direction: column;`. Then give the main content area `flex-grow: 1;`. This forces the main area to eat all empty space, pushing the footer to the bottom.