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Semantics accurately represent the structure and purpose of content in computer languages, enabling web developers and programmers to ensure the written code produces an output legible to humans and machines.

The amount of pages your site currently has.

An HTML attribute you can use to give a short description of the contents of a webpage. Search engines often display this in results pages (SERPs).

SSL (secure socket layer) is the standard method for establishing an encrypted link between a web server and a browser.

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

A/B testing compares two different versions of something — like a web page or campaign — to determine which performs better.

Micro conversions are small but important user actions on a website that contribute to the overall conversion funnel.

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

This checkbox allows you to enable or disable pagination on the selected Collection list.

A navbar, or navigation bar, is an interactive user element with a menu or a set of links to a website’s main sections.

The location your sitemap is stored in relation to your site, and what’s used when submitting your sitemap to search engines.

An element that contains content.

A language code is a standardized code of letters and numbers that represent different languages.

A custom font is any non-system-default typeface you manually upload to your website.

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

A robots.txt file instructs search engine crawlers which webpages and sections they can or can't crawl and index.

The amount of times a site visitor submits data using your site's form(s).

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

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

Left padding is a CSS property that defines the space between an element's left border and its content.

A headless content management system (CMS) separates the front-end presentation layer from the back-end management layer, allowing for more flexible content delivery.

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

Defines how tall an element can be. This can be defined in absolute terms (pixels) or relative terms (ems, rems, percentages, viewport-height, or viewport-width).

An application context is a set of data that identifies an application’s tasks, where those tasks originate, and how those tasks are configured.

ALPN stands for Application-Layer Protocol Negotiation. It’s a Transport Layer Security (TLS) extension that aids client and server identification during secure data transfers.

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.

Margins are an essential spacing element of web design, dictating the amount of whitespace between a box and its surroundings.

A call-to-action (CTA) is a website feature that prompts visitors to perform a specific action.

You can transfer sites from one Workspace to another Workspace.

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.

Display: none is a CSS property that hides website elements. This code tells the document flow to ignore the element entirely, making it invisible.

A comparison shopping engine (CSE) is a search engine that compares ecommerce pricing, shipping costs, and customer reviews.

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

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

An element that shares the same parent of another element.

To move forward one step while making changes to a Webflow site.

A section of the Add panel that contains the elements that act as a website's fundamental building blocks (e.g., div block, list, button, etc.).

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

In JavaScript, literals are fixed values written directly into the code.

A Webflow canvas setting that lets you create styles for viewports with a minimum width of 480px and a maximum width of 767px. Also known as the mobile landscape media query.

A sidebar, typically positioned on the left or right side of a website or app, is a vertical component that contains supplemental information to enrich a webpage’s primary content.

Conditionals, also known as conditional statements or expressions, are coding instructions that tell a program to execute an action for a certain condition.

A digital certificate is a data file embedded in the site that signals the site’s safety to visitors, internet service providers (ISPs), and servers.

A Domain-Specific Language (DSL) is computer script that solves software problems in a specific domain.

The "height: auto" CSS property automatically adjusts an element’s height based on its content.

Asynchronous JavaScript and XML (AJAX) is a web development approach that combines technologies to allow web content to update without reloading.

A content network is a collection of websites where advertisers can pay to display digital ads.

A Webflow canvas setting for creating styles that affect viewports with a minimum width of 768px and a maximum width of 990px. Also known as the tablet media query.

The American Standard Code for Information Interchange (ASCII) is an encoding standard that assigns numerical values to characters and translates them into computer-readable code.

The way browsers calculate an element's width automatically where Block level elements fill the available space of its parent and Inline elements shrink to the size of its children/content.

Real-Time Streaming Protocol (RTSP) is a standardized network protocol for transmitting real-time multimedia data like audio and video.

Content you create once, then publish in many different places across your website. As you update this content in the CMS, it automatically updates wherever it exists on your site, making it convenient to create and manage larger websites.

The fold distinguishes the visible portion of the webpage immediately visible to users without scrolling from the remaining content viewable by scrolling down.

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

A visible “Made in Webflow” badge displayed in the bottom right corner of Webflow sites. Webflow branding also appears in the site’s HTML. Learn more about Webflow branding.

The last time someone made a change to your site.

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.

A section of the Add panel that houses form elements like inputs, checkboxes, and radio buttons.

The span tag is used to style inline-text.

A space to hold and access sites, members, settings, and integrations. All users start with a Workspace that can become collaborative when and as needed.

Flex-direction is a CSS property that defines the main axis and direction of flex items, dictating the arrangement of the items within a flex container.

Inline style applies CSS to an individual HTML element using the "style" attribute within the HTML tag.

Webflow's visual content editor. You can access it through the Webflow Dashboard by clicking the “3 disclosure dots” on a site thumbnail, then clicking “Editor.” Guest editors can access it anywhere on their live site by adding ?edit after the page URL (e.g., yoursite.com/page/?edit).

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.

Compile time is the length of time it takes for a compiler to convert high-level code into low-level code.

An individual item within a Collection. For example, in a “Blog Posts” Collection, the Collection items are individual blog posts.

In CSS, flex-order is a property that allows you to manipulate the default source order of the items within a flex container. Flex-order is especially useful when you want content to display differently on mobile than on desktop.

A website name, or domain, is the title of a website that appears in the browser tab and search engine results.

A Webflow service that lets you point a custom domain to your Webflow-hosted site.

Urgency is a marketing term and psychological trigger that incites potential customers and website visitors to act swiftly.

The CSS border property delineates an HTML element.

A typography element that is used to link to other pages or sections of a webpage.

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.

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

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

Meta keywords are words or phrases you can include in your web page's metadata.

A pseudo-class that allows you to change the styles of an element when it is hovered, pressed, or focused.

Form blocks allow you to add form elements to a website, including appointment booking, surveys, applications, polls, and contact forms.

An argument is an independent value a function receives to deliver a specific output.

Below the fold refers to the lower portion of a webpage that isn’t immediately visible to visitors upon loading until they scroll down.

An em in CSS is a scalable and relative unit of measurement that defines the size of an element relative to its parent's font size.

The slug that represents the parent folder for your individual Collection item URLs. For example, if you created a Collection called “Blog posts,” the URL would be website.com/blog-posts, while a Collection item URL for a blog post called “Hello world” would be website.com/blog-posts/hello-world.

Font weight refers to the thickness or density of a typeface’s strokes.

Footer code creates a section at the bottom of every web page that displays important information like disclaimers, copyright or contact information, and links to related documents.

A media query is a CSS technique that applies different styles to a website or an app based on the characteristics of the device displaying it, such as screen size, resolution, and browser viewport.

Return on investment (ROI) is a metric evaluating the profitability or gain of a venture.

A comment is a text note in source code that offers context, internal information, or other guidance to any developers using it.

A navigational aid that displays in the bottom of the Webflow Designer to help you keep track of the element you're interacting with in relation to its hierarchy.

A method of lowering the file size of your stylesheet(s) by removing all white space from your CSS files.

Left margin is a CSS property that defines the space between an element's left edge and its surroundings.

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 display: inline-block CSS property defines an element’s appearance and behavior. CSS designers use this code to create website layouts.

Flex-basis is a CSS property used in flexboxes that sets the initial size of a flex item before it grows or shrinks.

Third-party applications that you've given access to your personal and/or website data.

A section in the Style panel that houses CSS properties related to the positioning of an element.

A certificate authority (CA), also known as a certification authority, issues digital certificates that verify a website’s owner.

The act of updating your live site to reflect new design changes.

A bounding box is a rectangular border around a website element (e.g., a heading, paragraph, or image) that appears during the design process.

A standard markup language that web browsers use to display websites.

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.