Как сделать табуляцию в html

Табуляция в HTML: 4 способа сделать отступ

По умолчанию браузеры игнорируют последовательности из нескольких пробелов, учитывая только первый. Однако, в некоторых случаях есть необходимость сделать отступ в HTML документе.

Отдельного символа табуляции в HTML не существует, тем не менее, даже без специального кода или знака табуляции, есть много способов достичь нужного результата.

Основные способы сделать табуляцию

Способы сделать табуляцию в HTML:

• Используя CSS свойство margin-left .
• С помощью спецсимвола неразрывный пробел   .
• Несколькими пробелами внутри тега <pre> .
• Задать блоку CSS свойство white-space и использовать пробелы.

Примеры. Табуляция в HTML

Способ 1: Делаем отступ, например, 50 пикселей от левого края с помощью свойства CSS margin-left .

Способ 2: Используем специальный символ HTML &nbsp; — неразрывный пробел. Каждый nbsp; равен одному пробелу и не будет игнорироваться браузером. Однако неразрывные пробелы не переносятся на следующую строку. Это следует учитывать, если табуляция делается как отступ внутри текста.

Способ 3: Пишем текст внутри тега <pre> . По умолчанию, браузеры не игнорируют пробелы внутри этого тега. Подробнее в статье: Тег <pre> HTML предварительно отформатированный текст.

Способ 4: Меняем у блока правило учета пробелов через CSS свойство white-space .

Каждый из этих способов будет работать. Какой больше подойдет в конкретном случае — решать вам. Мне в своей практике доводилось использовать все 4 способа табуляции, приведенные выше. Чаще всего использую CSS отступы и неразрывные пробелы.

How to Add an HTML Tab and Avoid Whitespace Collapse

TL;DR – In HTML, tab is a piece of whitespace equal to four HTML spaces in size.

Contents

Adding Tab Space in HTML

Unlike with HTML space, there is no particular HTML tab character you could use. You could technically use the &#9; entity as the tab is character 9 in the ASCII. Unfortunately, HTML parsers will simply collapse it into a single space due to the whitespace collapse principle.

There used to be a special tab element. However, it became obsolete in HTML3 more than two decades ago, and even then browsers didn’t support it universally.

One tab in HTML equals four spaces. Unfortunately, due to possible whitespace collapse, you can’t just type in four spaces, as HTML will collapse them all into a single space.

One possible solution is simply using the non-breakable space four times:

Preformatting your text is also an option. The <pre> tags preserve both HTML tabs and spaces the way they were typed:

Remember the browser will display it in a fixed-width font (like Courier) by default. However, you can change it using CSS properties anytime without affecting HTML tabs and spaces.

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CSS Alternatives for HTML Tab

Even though it’s useful to know how to tab in HTML, some cases do require using alternatives. When writing text documents, you might use tabs to modify layout or move your text fragments to a different place. In web design, it’s a bit different, and those tasks should be achieved by using CSS properties:

How to get a tab character?

In HTML, there is no character for a tab, but I am confused as to why I can copy and paste one here: " " (You can’t see the full width of it, but if you click to edit my question, you will see the character.) If I can copy and paste a tab character, there should be a unicode equivalent that can be coded into html. I know it doesn’t exist, but this is a mystery I’ve never been able to grasp.

So my question is: why is there not a unicode character for a tab even if I can copy and paste it?

HTML Tab Code

This page contains HTML code for adding a horizontal tab within the text of your website or blog.

There are several ways to approach this. Seeing as HTML hasn’t had a «tab» element since HTML 3, and browser support for this element was virtually non-existant anyway, we can’t use the «tab» element.

Therefore, we are reliant upon using either some other HTML element, Cascading Style Sheets (CSS), or a special character to create a horizontal tab.

Using CSS

Using CSS for your horizontal tabs allows you more control over how your tabs appear to your users. In particular, the margin-left and padding-left can acheive a «tabbed» effect.

Using Margins

Here’s an example of using margin-left to create a horizontal tab.

Using Padding

Here’s an example of using padding-left to create a horizontal tab.

Using Special Characters

Here are examples of using special characters to create a tabbed effect.

HTML Entity Number

Here’s how you use the HTML entity number to display the various spaces.

HTML Entity Name

This example uses the entity names to display the various spaces. As you can see, the end result is the same.

Preformatted Content

You can use the <pre> tag to display content that is preformatted. This means that the content will appear in the browser just the way you entered it.

To demonstrate this, here’s an example. In this example, I simply added spaces using my keyboard’s spacebar and tabs using my keyboard’s tab key. Because these are all enclosed inside <pre> tags, the browser displays it exactly as it was entered.

Note that browsers usually display <pre> text using a fixed-width font (such as Courier), but you can use CSS to change this as you see fit.

Blockquotes

If you are presenting a quote from another source, you should use the <blockquote> tag. Although not technically a «tab», browsers usually indent content that’s enclosed inside the <blockquote> element, thus resulting in a «tabbed» appearance.

Here is some food for thought:

Note that you should only use the <blockquote> tag for its intended purpose (to cite a quotation). If you are not citing a quotation, you should use one of the other methods of creating a horizontal tab.