UserAgent.me

What Does Your User Agent Say About You?

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A user agent is a computer program representing a person, for example, a browser in a Web context.

Besides a browser, a user agent could be a bot scraping webpages, a download manager, or another app accessing the Web. Along with each request they make to the server, browsers include a self-identifying User-Agent HTTP header called a user agent (UA) string. This string often identifies the browser, its version number, and its host operating system.

Spam bots, download managers, and some browsers often send a fake UA string to announce themselves as a different client. This is known as user agent spoofing.

The user agent string can be accessed with JavaScript on the client side using the navigator.userAgent property.

A typical user agent string looks like this: "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:35.0) Gecko/20100101 Firefox/35.0".

(Source: Mozilla.org)

User Agent String

Browser Data

User Agent Stylesheet

author
Ava Flores
• Wednesday, 18 November, 2020
• 10 min read

Peter Mortensen 27.2k2121 gold badges9393 silver badges123123 bronze badges If is missing in your HTML content you may experience that the browser gives preference to the useragentstylesheet over your custom stylesheet.

agent stylesheet como
(Source: www.juanmabenitez.com)

Contents

Peter Mortensen 27.2k2121 gold badges9393 silver badges123123 bronze badges Regarding the concept user agent style sheet”, consult section Cascade in the CSS 2.1 spec.

They are just the rock bottom: in the absence of any style sheets provided by the page or by the user, the browser still has to render the content somehow, and the user agent style sheet just describes this. Marking the document as HTML5 by the proper doc type on the first line, solved my issue.

In order to present the page in a way that satisfies ” general presentation expectations.” For example, a default style sheet would provide base styles for things like font size, borders, and spacing between elements. It is common to employ a reset style sheet to deal with inconsistencies amongst browsers.

Peter Mortensen 27.2k2121 gold badges9393 silver badges123123 bronze badges Each browser provides a default stylesheet, called the useragentstylesheet, in case an HTML file does not specify one.

I had a dumb error where a button element didn't look right in Chrome. So Chrome was stepping in to supply the parts that it thought I was missing.

stylesheet
(Source: pilotaz.blogspot.com)

Peter Mortensen 27.2k2121 gold badges9393 silver badges123123 bronze badges In Chrome developer tools, it says useragentstylesheet in place of the CSS file name.

In that case the browser still needs to render the HTML tags to the end user. To facilitate this each browser like Chrome, Safari, Firefox etc comes with a default style sheet.

In that case the browser still needs to render the HTML tags to the end user. To facilitate this each browser like Chrome, Safari, Firefox etc comes with a default style sheet.

The default style sheet provided by the browser itself is called useragentstylesheet. Following screenshot shows an example of CSS for H provided by user agent style sheet on Chrome.

CSS takes care of default formatting of documents through the concept of user agent style sheets, a cornerstone of the cascade. It means that a web browser doesn’t just present a line of text when it’s fed with an HTML document that has no styling information attached, but instead serves it using minimal formatting.

stylesheet agent user css basics webpage applied resets emmet
(Source: www.codingexercises.com)

The following is a list of default style sheets I’ve compiled over recent years (except for Safari; thank you, Martin). Due to the fact that Fire bird, Firefox, and Co. are all based on the same layout engine, they’re quite similar, if not identical.

I'm developing a website and trying to debug in Chrome dev tool. On Chrome dev tool it says Sergeant style instead of CSS file.

In order to present the page in a way that satisfies ” general presentation expectations.” For example, a default style sheet would provide base styles for things like font size, borders, and spacing between elements. It is common to employ a reset style sheet to deal with inconsistencies among browsers.

For this create CSS class and override the agent style sheet. In Google Chrome, go to URL about:version and take note of the “profile path”.

Inside User StyleSheets”, there should be a file called Custom. In General section, check or uncheck “Show user agent styles”.

(Source: www.dtcnnet.com)

The major difference is that: CSS resets aim to remove all built-in browser styling. Elements like H1-6 will appear bold, larger etcetera consistently across browsers.

Press Command + Shift + P (Mac) or Control + Shift + P (Windows, Linux, Chrome OS) to open the Command Menu. In the User agent section disable the Select automatically checkbox.

Create a CSS class that selects the input directly, for example. Explicitly setting inheritance behavior for the cursor style on all inputs.

Each browser provides a default stylesheet, called the useragentstylesheet, in case an HTML file does not specify one. Because you have not specified values for the table element’s box, the default styles have been applied.

In computing, an user agent is software (a software agent) that is acting on behalf of a user, such as a web browser that “retrieves, renders and facilitates end user interaction with Web content”. In case you didn’t know, every browser has its own default ‘ user agent stylesheet, that it uses to make styled websites appear more legible.

(Source: anton0825.hatenablog.com)

The cascade is an algorithm that defines how to combine property values originating from different sources. It lies at the core of CSS, as emphasized by the name: Cascading Style Sheets.

Though style sheets come from these different origins, they overlap in scope; to make this work, the cascade algorithm defines how they interact. Some browsers use actual style sheets for this purpose, while others simulate them in code, but the end result is the same.

The user (or reader) of the website can choose to override styles in many browsers using a custom userstylesheet designed to tailor the experience to the user's wishes. The cascading algorithm determines how to find the value to apply for each property for each document element.

That means rules whose selector matches the given element and which are part of an appropriate media at-rule. After your content has finished altering styles, it may find itself in a situation where it needs to restore them to a known state.

A very simple introduction to the CSS cascade CSS Key Concepts: CSS syntax, at-rule, comments, specificity and inheritance, the box, layout modes and visual formatting models, and margin collapsing, or the initial, computed, resolved, specified, used, and actual values. Definitions of value syntax, shorthand properties and replaced elements.

css reset stylesheet agent user which rules greyed applied circled browser change way
(Source: ignitecreatives.com)

Yellow background > I got it fixed with the code below. I know WordPress well enough but any tricky answers might get me confused.

I would like to solve this problem either using .css or adding some JavaScript code in the header/footer element. And I also tried to Normalize.css which, I guess, I could just add to my theme folder with the same name... forgive my dumbness.

Any help would be highly appreciated (praying hands). Make sure you prefix it for different browsers(Not sure if needed) and of course do the same for active etc (wherever you get that blue outline).

Since you're messing with CSS you need to start using Chrome DevTools. Secondly, using !important in CSS is not a major no no but the reason your border-bottom rule wasn't working was because you had already used !important in a previous class and it was picking it up.

Apply outline:0 to the input normal style not :hover or focus, then remove border-width: inherit !important; from the :focus of the input, because then it takes its parent border width, and that is 0px therefore your border disappears on focus. I want to modify the default values and add some new rules that would help me speed up my workflow and enhance my browsing experience.

(Source: www.codegrepper.com)

In Google Chrome, go to URL about:version and take note of the “profile path”. Browse to the profile path in your file browser.

Inside User StyleSheets”, there should be a file called Custom.css, empty by default. An user agent (UA) string is able to be used to detect what version of a specific browser is being used on a certain operating system.

Mapping UA string tokens to a more human-readable browser name for use in code is a common pattern on the web today. When mapping the new Edge token to a browser name, Microsoft recommends using a different name than the one developer used for the legacy version of Microsoft Edge to avoid accidentally applying any legacy workarounds that are not applicable to Chromium-based browsers.

When Microsoft is notified about these types of issues, website owners are contacted and informed about the updated UA. In these cases, Microsoft uses a list of UA overrides in our Beta and Stable channels to maximize compatibility for users who access these sites.

Other Articles You Might Be Interested In

01: What Is My Browser User Agent String
02: Whoishostingthis Tools User Agent
03: Online User Agent Parser
04: Safari User Agent Internet Explorer 11
05: Safari User Agent Version
06: Sample User Agent String
07: Html Css User Agent Stylesheet
08: Httpclient User Agent Set
09: Http Request Header User Agent
10: Http User Agent Format
Sources
1 developer.mozilla.org - https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/User-Agent
2 en.wikipedia.org - https://en.wikipedia.org/wiki/User_agent
3 docs.microsoft.com - https://docs.microsoft.com/en-us/microsoft-edge/web-platform/user-agent-string
4 stackoverflow.com - https://stackoverflow.com/questions/2601372/what-is-the-standard-format-for-a-browsers-user-agent-string
5 blog.elmah.io - https://blog.elmah.io/how-to-add-user-agent-header-to-httpclient-in-net/
6 manytools.org - https://manytools.org/http-html-text/user-agent-string/
7 www.scientiamobile.com - https://www.scientiamobile.com/correctly-form-user-agents-for-mobile-apps/
8 code.tutsplus.com - https://code.tutsplus.com/tutorials/http-headers-for-dummies--net-8039
9 docs.newrelic.com - https://docs.newrelic.com/docs/apis/rest-api-v2/basic-functions/set-custom-user-agent
10 www.powershellmagazine.com - https://www.powershellmagazine.com/2012/11/20/pstip-powershell-and-the-pre-configured-user-agent-strings/