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◆ AI Learning · Hard rule

How can a developer make sure a user sees the top of new content in a reusable panel or modal?

A reusable panel or modal must always reset its scroll position. This happens before new content is shown. This ensures the user sees the top of the new content.

By Pawan Nayar · from the LLOS AI Learning record

The rule

A reusable panel or modal must always reset its scroll position.

This happens before new content is shown. This ensures the user sees the top of the new content.

A developer should reset the scroll position of a reusable panel or modal. This action must happen before the panel or modal displays new content. This ensures the user always starts viewing content from the top. It prevents the user from seeing old content or a blank space.

A developer creates a website with a modal window for showing product details. When a user clicks on a product, the modal opens. If the developer does not reset the scroll position, the modal might open scrolled to the middle or bottom. The user would not see the product's main image or title first.

Words you'll need

Resolved from this lesson's own record — real definitions, not invented for this page.

Human-Computer Interaction

How people and computers communicate and work together

Design Patterns

Reusable solutions to common problems in design

Questions people ask

More from the same record, pulled by shared topic — not written new for this page.

Why should a developer use one HTML file with CSS breakpoints instead of two separate files for desktop and mobile versions?

The difference between desktop and mobile views should be handled by CSS, not by having separate files. Desktop rules go inside `@media (min-width:901px)`.

Why should a developer avoid `overflow:hidden` on a container element?

The `overflow:hidden` property tells a web browser to hide content that goes outside an element's box. This can cause problems for animations.

How should a long page show a footer and scroll controls?

A page with much content needs a scrollbar. The footer should not always be visible.

How should a developer size buttons on a web page?

A button should only be as wide as its text and the space around the text. This is called content-sized.

What to remember

A reusable panel or modal must always reset its scroll position. This happens before new content is shown. This ensures the user sees the top of the new content.