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Block Scope. Before ES6 (2015), JavaScript variables had only Global Scope and Function Scope. ES6 introduced two important new JavaScript keywords: let and const. These two keywords provide Block Scope in JavaScript. Variables declared inside a { } block cannot be accessed from outside the block:
Chapter Summary. A block-level element always starts on a new line and takes up the full width available. An inline element does not start on a new line and it only takes up as much width as necessary. The <div> element is a block-level and is often used as a container for other HTML elements.
Compared to display: inline, the major difference is that display: inline-block allows to set a width and height on the element. display: inline-block, the top and bottom margins/paddings are respected, but with display: inline they are not.
display: block; creates a block-level element, whereas display: inline; creates an inline-level element. It's a bit difficult to explain the difference if you're not familiar with the css box model, but suffice to say that block level elements break up the flow of a document, whereas inline elements do not.
13 lis 2023 · Differences between Block Scope and Local Scope. Block scope is often confused with local scope, but there's a key distinction. In local scope, variables are typically defined within a function, while block scope is created within code blocks like if, for, or while statements.
14 lis 2024 · In this guide, we have looked at how elements display in normal flow, as block and inline elements. Due to the default behavior of these elements, an HTML document with no CSS styling at all, will display in a readable way.
CSS can be added to HTML documents in 3 ways: Inline - by using the style attribute inside HTML elements. Internal - by using a <style> element in the <head> section. External - by using a <link> element to link to an external CSS file. The most common way to add CSS, is to keep the styles in external CSS files.
