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A CSS descriptor sets specific properties and values of an at-rule (@-rule) element, dictating its appearance and behavior on a web page.

An end user is an individual or group who directly interacts with a particular product, service, or user interface (UI), such as a website or application.

Character encoding is the process of representing characters (such as “a” or “3”) in a particular way, such as text on a computer screen.

The last time someone made a change to your site.

The title of a page in your site. This is visible in the Pages panel.

Behavioral targeting is a marketing technique that leverages user data to deliver personalized ads to drive conversions.

Really Simple Syndication (RSS) is a web format that automatically distributes frequently updated content to subscribers, eliminating the need for subscribers to check the website manually to stay up to date.

Props are the customizable settings exposed on a reusable component, letting you change its content, styling, or behavior each place it's used without editing the component itself.

A Webflow component that displays a pane of content associated with a tab menu button.

Adding a Google site verification meta tag to your website's HTML code allows Google to verify that you own the site.

Mid-September 2019, new European requirements for authenticating online payments were introduced in Europe as part of the second Payment Services Directive (PSD2). The Strong Customer Authentication (SCA) requirements apply to businesses in the European Economic Area (EEA) that accept online card payments from cardholders whose banks are also located in the EEA.Webflow Ecommerce payments are PSD2 and SCA compliant (i.e., support 3D Secure payments) for European customers.If you’re a merchant in the European Economic Area (EEA), all you need to do to ensure that your Webflow Ecommerce store is PSD2 and SCA compliant for your European customers is to republish your store if it wasn’t published on or after September 11, 2019. Read more about how to make your ecommerce store compliant in our Payment gateway article.

A dropdown, or dropdown menu, is a pre-built navigation element you can add to almost any part of a website.

The far right vertical panel in the Designer that houses the Style panel, Element settings panel, Style manager panel, and Interactions panel.

A document type definition (DTD) defines the structure, validity, and attributes of standard generalized markup language (SGML) documents, such as GML, HTML, and XML.

From your Dashboard, you can access, create, and manage all your sites.

The Shadow DOM is a browser feature that gives an element its own isolated DOM tree, so its styles and scripts do not clash with the rest of the page.

APIs, or Application Programming Interfaces, are common code protocols that let apps safely exchange data with other apps, software, and hardware.

:has() is a CSS selector that styles an element based on its descendants or subsequent siblings.

Translation inheritance is when a secondary locale automatically mirrors the primary locale's content until a specific field is manually translated, at which point that field stops inheriting further changes.

Scalable Vector Graphics, or SVG, is a file format for displaying scalable vector graphics on the web.

The area where you can manage your profile, email settings, and security settings.

URL redirect, or URL forwarding, is a web server function that automatically sends users from one web address to another.

Columns let you create sections of content that sit side by side on your website, like the columns in newspapers. You can choose how many columns you want and their widths. You can also control how they display on smaller screens — such as stacking them.

Lets you control how Collection items display inside a Collection list. The default layout option has each item covering the full width of the parent element. You can change this to display Collection items in 2, 3, 4, or 6 columns.

The display: inline CSS property is a display option that controls an element’s appearance and layout.

An element contained within a parent element that has display: flex set.

Right margin is a CSS property that defines the space between the right edge of an element and its surroundings.

Java is an object-oriented programming language for building dynamic, interactive web applications across platforms

A CMS field used in Collections. Just like a reference field, the multi-reference field lets you reference other Collections in your site. But it’s even more powerful, as it lets you reference multiple items within a Collection instead of just 1 item.

Gutters refer to the whitespace between content columns on a webpage.

Cloneable sites are open source (made available under the CC0 (“no rights reserved”) license). When you enable cloning, you allow any user to copy, modify, and use any part of your site for personal or commercial purposes.Sites with cloning turned off do not give others access to copy your site or open it in the Designer.

DNS records store important information about domains and hostnames. They function like maps, directing DNS queries to the desired endpoint.

DHTML, or Dynamic HTML, is a web-development technique combining HTML, CSS, and JavaScript to create dynamic, interactive web pages and complex web applications.

By default, Collection lists display all items in a Collection, but you can add limits to control the number of Collection items that display.

The color-coded borders of elements you'll see in the Webflow Designer.

An inline frame is an HTML element that embeds an HTML document within another webpage.

The last time your site was published.

Contextual advertising is a form of paid advertising that matches web content with ad intent.

A heading is a text element that provides a title or headline for a section of content on a webpage. These elements guide users and search engines through your content.

A Webflow site that is publicly visible in your public profile and in Made in Webflow search results.

A static page is a document with fixed content that makes up an individual web page on your site.

You can sort your Collection items in multiple ways — select the field from the Collection you wish to filter from, then select the ordering option.

A domain, or domain name, is the unique address that directs to a website on the internet.

The main interface where you can build sites.

A web app that helps you measure how different site designs impact user behavior.

A Webflow element that embeds a Twitter Follow or Tweet button into your site.

Available in CMS Collections. You can add videos via a link — not an embed code — from an online video host like Vimeo or YouTube. Just paste in the video link and it’ll appear in the native video format from the 3rd-party video player.

Available in CMS Collections. This field offers you a powerful filtering tool for Collection items. For example, you could create a switch labeled "Featured?" for Blog Posts, and then switch on the toggle to showcase particular posts.

The calc() function is a CSS function that does math with mixed units, such as 100% minus 40px, to set a value.

A section is an element of design layout that divides a web page into visually distinct segments.

An algorithm is a set of rules or steps that help solve problems or carry out specific tasks.

Resolution is a metric measuring clarity and detail through the number of pixels displayed on a screen or used to render an image.

A backlink, also referred to as an inbound link, is a hyperlink from one website to another website.

Serialization is the process of converting data into an optimized format for storage, transmission, and sharing.

A unique ID you can use to link your Google Analytics account to your Webflow site.

A class is a template that defines variables for objects with similar properties.

A browser, or web browser, is a software program that allows users to access, navigate, and interact with websites on the internet.

A key, or web key, is a unique identifier that authorizes access to a webpage or service.

Decryption is the process of reverting encrypted data to its original format.

BiDi stands for bidirectional. When a document is BiDi, it supports text that reads from right to left and left to right.

Allows you to create and format headings, paragraphs, blockquotes, images, and video all in one place instead of having to add and format them individually.

Empty or void elements are HTML elements that don’t require a closing tag because they contain no content.

Static content is content that’s not bound to any Collections or dynamic elements.

You can assign element IDs from the Element settings panel in the Designer. ID selectors are useful for HTML anchors, linking to page sections, or for custom code.

Dynamic elements are web page components that can change based on user interaction or external factors, like a live news feed, without requiring a page refresh or reload.

Python is a high-level, object-oriented, general-purpose programming language (GPL).

Idempotency is a computing principle where multiple applications of a function or operation produce the same result as a single execution.

The element directly above in the hierarchy tree.

A hit is a request to a web server from a browser for a specific resource.

"Safe" is a Hypertext Transfer Protocol (HTTP) method that doesn't modify the server's state or resources.

JSON-LD is a structured data format that describes a page's content in a machine-readable way, helping search engines and AI crawlers understand what's on the page.

A cryptographic hash function takes an input message of any length, such as a file, message, or password, and uses a mathematical formula to produce a fixed-size output (hash).

Clickjacking is when a malicious actor deceives website visitors into clicking buttons or links hidden in a fake layer to steal sensitive data or install malware.

Automagically describes complex content or functions that appear as if they were created using magic.

A list is a Webflow element that displays multiple pieces of content in a structured, visually appealing way. The individual elements that make up the list are called list items.

Utility pages are default, customizable templates for your site’s 404 page, Password page, and Search results page.

A breakpoint, or media query, is the width at which a website’s design and layout adjust to fit screens of different sizes. When designing in Webflow, breakpoints for smaller devices inherit styles from the base — or desktop — breakpoint by default.

Email confirmations you receive upon making Webflow payments.

Short for Joint Photographic Experts Group, JPEG is a file format that uses lossy compression to maintain manageable file sizes without compromising image quality.

Help text is a user interface design element that provides additional information or guidance to users to clarify which content should go in a given Collection field.

When you have more unhosted sites in your Dashboard than your Workspace plan allows, those additional sites past your limit will be “locked” until you upgrade your plan. When you upgrade, you’ll be allowed more unhosted sites (up to the limit for your Workspace plan) and will be able to access your previously locked sites.

The control flow is the order in which a computer program executes its instructions or statements, guided by control structures.

Jank describes subpar functionality in a web interface that hinders or disrupts user activity.

Bottom padding is the space between the bottom of an element and its border.

When someone sends data through one of your site's forms.

A web app that helps you connect multiple third-party services together based on triggers and actions.

The state displayed when a Collection contains no Collection items, which gives you the opportunity to design for a situation where there's no content to display. Check out the Empty States blog for inspiration.

An AI crawler is a bot that fetches web pages so AI companies can train models or answer questions with current information.

PNG, short for Portable Network Graphics, is a lossless image format known for its transparency support and quality retention after compression.

Syntax error refers to a mistake in code that violates the programming language’s rules and prevents the code from executing correctly.

A primitive is the simplest JavaScript data type, representing fundamental values that do not encapsulate any object, method, or property.

The most flexible display property in CSS is the aptly named display: flex, which allows you to create flexible layouts with elements that you can align and distribute vertically or horizontally.

A section of the Add panel that holds multimedia elements like images, video, and Lottie animation.

A registrar, or domain name server (DNS) registrar, manages the sale of domain names and the assignment of IP addresses, ensuring each domain’s uniqueness.

A feature that allows you to see how your site would be displayed in a browser without needing to publish your site or leave the Designer.

An individual field within a Collection. You'll select which fields to display in dynamic Collection lists and Collection pages.

A folder is a subdirectory of your site's root folder for organizing web pages.

Asynchronous programming is an approach where programs simultaneously run multiple operations independently without waiting for previous tasks to complete.

Single-page publishing lets you publish changes to one page without republishing the rest of the site, useful for quick fixes on large sites.

The <canvas> tag in HTML5 creates a container for dynamic graphics and image rendering on a webpage.