What is Html: Definition and 75 Discussions

The HyperText Markup Language, or HTML is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
Web browsers receive HTML documents from a web server or from local storage and render the documents into multimedia web pages. HTML describes the structure of a web page semantically and originally included cues for the appearance of the document.
HTML elements are the building blocks of HTML pages. With HTML constructs, images and other objects such as interactive forms may be embedded into the rendered page. HTML provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items. HTML elements are delineated by tags, written using angle brackets. Tags such as <img /> and <input /> directly introduce content into the page. Other tags such as <p> surround and provide information about document text and may include other tags as sub-elements. Browsers do not display the HTML tags, but use them to interpret the content of the page.
HTML can embed programs written in a scripting language such as JavaScript, which affects the behavior and content of web pages. Inclusion of CSS defines the look and layout of content. The World Wide Web Consortium (W3C), former maintainer of the HTML and current maintainer of the CSS standards, has encouraged the use of CSS over explicit presentational HTML since 1997.

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  1. Sam Groves

    Why is the HTML audio tag inactive on my Norway website?

    Hi.I am building up a site for Norway.So far I have this code: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Norway's Home Page</title> </head> <body> <p style="font-size:18;font-family:Verdana"> Norway (Bokmål: Norge, Nynorsk: Noreg), formally the Kingdom of...
  2. Bob Walance

    JavaScript Button click event image hiding is delayed

    My webpage project has a button labeled 'Harmonics' with a mouse-click event. I want an image to be hidden as soon as the button is clicked, however this doesn't happen. Here's a snippet of the html. It doesn't matter what order the two Javascript functions are called. The 'hidden' attribute...
  3. M

    Should users confirm their account deletion before it is processed?

    Hey! 😊 I have written a code in Python for a server to search for movies. At the site for the user I have added at the html template the options to change the password and to delete the account. For this do I have to write a separate html or a separate endpoint for these ones or can I write...
  4. M

    Python - HTML : Isn't this a dictionary ?

    Hey! 😊 I have written a program in Python where API calls to the server to get currency exchanges. Now I want to add a part for the user, i.e. with html. The endpoint is : @route_rates.route("/all/") def get_all(): return render_template("currency.html", my_currency =...
  5. G

    Does anyone know about python flask and wtf forms?....

    from flask import Flask, render_template from forms import RegistrationForm @app.route("/register", methods = ['POST', 'GET']) def register(): forms = RegistrationForm() return render_template('register.html',form=forms) from wtforms import Form, BooleanField, StringField...
  6. evinda

    MHB How can I implement a website using HTML and CSS without functionality?

    Hello! (Wave) I wanted to ask you if you are familiar with html, css, javascript and php... What is it about? 🤔 Here is for example an exercise: Implement in HTML and CSS the site that is shown below (the specifications are marked with red). The site will be without functionality. How would...
  7. Y

    Any suggestion of a good self starter book on HTML?

    I want a suggestion on a book for learning HTML programming. You all know what my level is...which is NOT MUCH. I just want to get a book that is not too hard to learn. One that I can experiment and play with. Thanks
  8. M

    Help finding some html to pdf converters please

    Hello, I am looking for some softwares that can convert htlm files into pdf and join them. I know Adobe Reader can do this and there are online converters but I am looking for alternatives of Adobe and offline options. Can you please recommend one if you know any? Thank you.
  9. topsquark

    MHB Highlighting a Letter with HTML: A Quick Tutorial

    Note: You'll have to quote this to see the code. I don't think the noparse tags are working here. I recently wanted to correct a member's equation and wanted to highlight a change. I decided to change a letter's color to red: T \left ( \left [ \begin{array}{c}x-2y \\ 3x-y \end{array} \right...
  10. YoungPhysicist

    Html5 <canvas> element related apps not working

    Recently I want to make a image adder in html, which is just a app that add the rgb value of each pixel in simple bmp files together.It can be used to grayscales and other things. I found this website that teches how to do that with the <canvas> element in html5...
  11. YoungPhysicist

    B A primitive function graphing tool

    Recently I found this online: https://www.html5canvastutorials.com/labs/html5-canvas-graphing-an-equation/ It is a html page using the <canvas> element and it can graph functions. Although much better versions of this is already everywhere(like desmos), it should still be useful considering...
  12. YoungPhysicist

    JavaScript How is PF's "CONTACT US" Button made?

    I would like to add a email sending feature to my website, something like the the "CONTACT US" button here on PF. When I was searching this topic online, I get various paragraphs from CodeProject and StackOverflow, I saw methods using mailto: and some other stuff, but none of those work on my...
  13. W

    Web Scraping: HTML to Text (Streaming). Suggestions?

    Hi All, I am trying to figure out how to scrape ( if necessary; use API otherwise ) , html to text , maybe with an intermediate step using Excel and .csvs, EDIT Preferably using Python. I have some idea on how to go about it, but I am no expert. I would appreciate input in general. Thanks.
  14. D

    Java Editable html table and javascript

    Hi, I would like to provide a tool for some calculation as a html table whose values the user may change and subsequently submit a JS script which uses these values as input. Do you know of some easy to use library to get the data from the table into JS? Thank you, DrDu
  15. Dave Ritche

    How can I make a custom bootstrap navigation bar?

    I am trying to make a bootstrap navigation bar but I'm having issues with understanding which class to apply to a specific element? Can anyone show me some coding?
  16. kolleamm

    PHP How does PHP work with HTML files?

    For example instead of uploading an index.html to a server, would I just use index.php instead? Basically I want to be able to use PHP code to make my page more interactive.
  17. kolleamm

    HTML, add/delete element inside div

    I'm searching for a way to add/delete an element in a div in my html code. So far I have only found ways to replace content of existing elements. <div class="example"> empty... </div> how would I do this?
  18. A

    Coding new integral sign in mathjax for html file

    I am creating a website and wish to include a new integral sign that has an infinity sign over it but aligned with the same tilt angle as the integral. I'm using Mathjax to render the math code. I can code this in Latex outside an HTML file and it works perfectly but does require the graphicx...
  19. Kaura

    JavaScript Gravity Simulator: JavaScript & HTML Canvas Code Review

    Recently I have been working on a gravity simulator using JavaScript and HTML Canvas I know that is not the most practical method but it fits my current skill set at the moment I have worked out the basics but due to my lack of experience in coding I was simply looking for people who better...
  20. M

    An HTML and computer securIty question

    Hi, some of my html and txt files have added the extension .crypt, i.e, they have become .txt.crypt and .htm.crypt. Now I deletes .crypt extension from .htm files but now they do not open correctly. How can I open correctly with internet explorer? Thank you.
  21. Dave Ritche

    Is Elm the Future of Web Development?

    How can we align all the input fields of form vertically in justified position.For example like this form:
  22. Dave Ritche

    Icon Help with HTML & CSS | Get Answers Now!

    Hello! I have added an icon to my home page and I'm trying to add it to multiple pages without adding it to every time on the page.Is there anyway i can accomplish this task?If yes,then please help me with this. Thanks!
  23. C

    How Is MS Word related to HTML and CSS?

    Just wondering: When i write a book in MS Word and save it as a webpage file (html) It seems that all the formatting i chose in MS Word (bulletons, indents, headings) perfectly translates to HTML and CSS, so just wondering Is HTML and CSS built into MS Word? Does MS Word work like a BROWSER...
  24. Dave Ritche

    Why is my HTML and CSS nav bar pushing down other content?

    Please help.. I've created a nav bar using list tag in html.when i place pointer on it,the list appears but pushes other contents down leaving space.i don't want it. I want the list to be appeared on other contents i mean over them. Thanks in advance!
  25. C

    PHP HTML, php and css code in ebook, proper formatting?

    Hi, I want to write an ebook on CSS, HTML and php, and I'm using a RTF copy/paste plugin to my code editor so i can copy and paste code directly into MS Word from my code editor. I'm just wondering: Can i write the whole book in MS Word and then directly upload it to amazon, for ebook readers...
  26. lonely_nucleus

    JavaScript What scripts do websites like unitednuclear.com use?

    I recently finished a course of html and css at codeacademy.com and I think I learned a lot from that but I do not feel prepared to make websites that can, for example, load another page when a button is clicked. Overall I want to know what type of languages are used to program sites like...
  27. R

    LaTeX Writing equations in latex into my html

    I just started learning html and css today. I am trying to build a webpage where I can place in all my homework questions and solutions. How can I use latex to write the equations in my html?
  28. A

    Calculators Ti-89 cabable of a html format viewer?

    I have .Html files I can use offline. Is there viewer for html on the ti-89?
  29. 22990atinesh

    What can be the most appropriate answer for this HTTP Problem

    Homework Statement A graphical HTML browser resident at a network client machine Q accesses a static HTML webpage from a HTTP server S. The static HTML page has exactly one static embedded image which is also at S. Assuming no caching, which one of the following is correct about the HTML...
  30. J

    Ok, I need a new thread for my HTML processing program

    My old thread was getting messy and I realized I needed to go back to square 1 and write up a plan. So here's an outline of the plan: I will add to this thread as I write the helper functions and encounter any problems. Criticism greatly appreciated.
  31. Y

    Why my pdf films turn into HTML when transfer?

    I am switching computers so I transfer some pdf files from the first computer(Win 8) into a memory stick. Then I transfer from the memory stick to the second computer( Win 7). But all the pdf files become Firefox HTML Documents. 1) When I copy from the first computer, I open the memory stick...
  32. J

    HTML element with multiple classes

    Suppose I write the following in my stylesheet .class1 { position: relative; } .class2 { position: absolute; bottom: 0px; } and then the following in my body <div class="class1 class2"> </div> Will that div take...
  33. N

    PHP HTML and PHP issue: display HTML form variables using PHP echo

    Heeeeeeellllllllllllllooooooooooooo, I have a question about HTML and PHP: Firstly, I am using Apache2 and PHP5 (I think) and running it as a localhost. I created a simple HTML form that sends the variables via post to a PHP file; there are two variables with the names "nickname" and...
  34. D

    Java Getting Started with JavaScript and HTML for Website Development

    Does anyone know anything about JavaScript and/or HTML? I'm just really interested but I don't know where to start... If you are asking what for, then I want to learn to develop my own website or social network... (The social network doesn't have to be like Facebook, just for my own purposes...
  35. A

    Website HTML Coding Help Required

    Lovely people of the forum, If you take a look at http://www.lexilikes.com, you will see that the pictures in the main column (the post column) are quite small and what I'm trying to do is make the column wider so that I can fit larger, HD quality photos (if I put them in now they just get...
  36. B

    HTML Font Tag: How to Change Text Size and Style for Your Webpage

    When I make a webpage and I want my Text in my Link to be say Font Size 6 am I right I would do this <font size="6"> <A HREF="form.html" TARGET="B"> <img src="mailbox.gif" width="16%"> <BR> E-MAIL THE ARTIST </A> </font> Thanks
  37. O

    Fortran Can a Fortran 95 Program Run Online Using a HTML Form?

    I've got a Fortran 95 program (which basically does few calculations) and I'd like to use it online. So that, the users will input data into a HTML form, the program will run, and it will display the results. Would it be possible to do it in the following way? To run a little program (e.g...
  38. C

    Why is My HTML Footer Not Displaying Correctly?

    Not sure why my footer is not working correctly in my file, anyone see what is wrong? <html> <head> <title> Layout with Divs </title> <link href="divstyle.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="outer"> <div id="bannerbox"> Banner </div> <div...
  39. M

    Converting html document to PDF

    Hello, I am trying to convert a .html file of my unofficial transcript so I can send it to REU programs because I am trying to get into an REU this summer. I've tried using the website converters and I always get an error. Is there any way to conver this for free? Or, can I PM it to...
  40. A

    Why html data has to be send to a different server to process?

    Since HTML is a markup language it cannot process data. So we have to send the data somewhere to produce some output. But why do we need to send it to a different server where data is processed using PHP language? Why can't we just have an external c or c++ program and have a way to send the...
  41. N

    Parsing HTML and Searching Text

    I need to parse HTML and search for some text. For example, a text containing XXX (just random input) needs to be searched in HTML. I need to parse HTML, search this XXX and get its CSS attributes. However, this XXX text can be in any HTML tags. Java/JavaScript/PHP are all available for...
  42. E

    Help> make an HTML page to solve engineering examples

    Hello everybody; I need your help in making an HTML page used to solve engineering examples with equations and many tables will be used (maybe I should use Java Scripts).. the inputs will differ due to the user. Please help me ,,
  43. R

    Good html website code templates?

    I'm trying to fix up my dads website but the old version seems to have been made using some sort of WYSIWYG editor so the code is completely senseless and complicated. So I think it would be quicker to start and just re make the website from the ground up but I haven't got the time to fiddle...
  44. M

    Free HTML Web Hosting: Find A Multipage Host

    hi.. i just taught myself HTML and wanted to show one of my friends. The problem is, the files are on my computer (how do i use FTP?!) and is there anyway i can find a free, multipage web hoster that you can add your own html code?
  45. Loren Booda

    Accessing the text code of an HTML file for editing

    I had installed FileZilla FTP freeware on my computer. Later, I was unable to edit my HTML file (pushed wrong button?) Whenever I tried to open or edit it using Word (my only editor which now seems to accept HTML), the webpage would appear, rather than the text code. I am using Windows 7 on...
  46. MartinJH

    HTML Code for Firefox to Stop Right-Click Copying

    I realize HTML isn't strictly a 'coding language' or so I've heard. I have a good friend who has a site he needs to prevent users from 'right clicking and copy'. Its a guitar tab site and he has spent relentless hours transcribing a band whos songs are far from easy. So to prevent, to a certain...
  47. T

    Java Where can I find free online resources to learn HTML, Javascript, and CSS?

    I am trying to learn these web designing stuff on my own and am currently using http://www.w3schools.com/html/default.asp for HTML learning... and though i am well aware of the basics ..i need to know much in depth. So do you guys have any good 'n' free online resources to learn HTML +...
  48. G

    New improved html table of the nuclides

    I've created a new html table of the nuclides that allows you to only show even, odd or every 4th nuclide making it easier to see patterns in the overall chart. See the image below. The horizontal axis can be either 'the number of neutrons' or 'the number of neutrons minus the number of...
  49. I

    What HTML tag can I use to bypass category filters on my website?

    All, I'm creating a website for my wife and i'd like to be able to make updates while at work. unfortunately our filters here won't let the site come through because of the category settings. For example, if i were to try and go to the texas lotto page, our filters would block it because the...