Html5 Academy

I have a basic form which contains a text field like this: But I want to control if exist any pred… Read more Check If String Exists In Text Field

EDIT this helped http://lea.verou.me/2012/07/important-prefix-free-update/ im trying to use prefixf… Read more Can't See Gradient When Using Prefixfree.js

I need to draw 2 variations of the same image on top of each other, whose alpha values add up to 1.… Read more Blending Two Images With Html5 Canvas

I have a flexbox navigation menu in my angular 6 project , I want to change the background-color wh… Read more Sticky Menu Changing Color When Scrolling Down Without Jquery

I am trying to find a way to move an group (id='avatar') inside an SVG with jQuery based on… Read more Move Svg Group On Path Trail Based On Percentage Of Whole Path Trail

I am using the fancybox iframe (as can be seen here in the iframe demo) http://fancyapps.com/fancyb… Read more Fancybox Opening Hyperlinks In Same Popup Window

Created a captcha using imagestring Solution 1: Normally i won't write this much code as stack… Read more Method To Refresh Png File Without Refreshing The Whole Page

My code below works a bit doggy so I need your expertises to solve these two issues. I know many ex… Read more Sliding Div With Jquery In A Loop

here is my code: when i run google-chrome /home/roroco/Dropbox/jss/ro-wemedia/ex Solution 1: … Read more Cannot Run Script After Iframe

Solution 1: Although there are portions of this answer that apply to only to the usage of the mail… Read more Php Mail Function Doesn't Complete Sending Of E-mail

I'm using jsf pages with prime faces 3.5 , my data table works fine on html page and all data … Read more Can't Export Data Table To Excel From Jsf Page

As a first, I'd like to mention that I understand how everyone feels towards asking questions w… Read more How To Break Mysql Content(text+html Content) Into Columns?

I want to use the HTMLpurifier in combination with the Zend Framework. I would love to load the Cla… Read more Include Htmlpurifier With Zend_loader

I would like to play a GSM audio file within my HTML5 page In order to do some testing I created th… Read more How To Play Gsm Files In Html5

I'm new to php and I don't quite understand why this form is submitting under all circumsta… Read more Form Submits Even When All Fields Aren't Filled Out

I'm fetching data into the table and on clicking any table row it open a nested colspan inside … Read more Close Previous Table Row When Clicking On Another Table Row

I'm building a contact form and i want to submit the data through ajax and display the result b… Read more Form Submit - Preventing Page Reload Jquery

I have an issue after adding a element dynamically it doesn't have the click event, so i have t… Read more Jquery Bind Event After Adding Element Dynamic

Here is my code: I get the computed dimension of SVG as 1000 X 500 but the computed dimension of D… Read more Why Computed Height Of Div Is Larger Than It's Content (like Svg) When It's Height Is Provided As "100%"?

I am using jQuery to show or hide a span. But I want the to appear in the same place as the link I… Read more Show/hide Span On The Same Spot

I am doing some HTML parsing and I am using HtmlAgilityPack and I am trying to check if a node elem… Read more Htmlagilitypack: How To Check If An Element Is Visible?

I'm trying to generate a ticket id value with this format: yymm###### to be used in my database… Read more How To Generate A Ticket Id With Correct Length By Padding Middle With 0

I'm having real difficulty figuring how to do the following: I want to have two tabs (horizonta… Read more Tabbed Navigation

I have an html form that goes like this: Copy Solution 2: use runat="server" for each … Read more Cannot Get The Html Textbox Value

I have a DIV container that I want to place inside a Canvas element, how do I set the clipping path… Read more Displaying Div Inside A Canvas Clipping Path

Istanbul section right pulldown a hover menu how do I do it? Copy Second, add css for hover of thi… Read more Dropdown Menu And Hover Menu (sub Menu)

I have a table that gets populated from a database. I have 2 conditions that i need to apply Apply… Read more Change Row Color Based On Td Value Using Jquery

I'm using a div with class 'col-lg-9', inside that div there are two columns with a cla… Read more Divide A Column Into 2 Parts In Bootstrap 3

I'm using the following snippet to extract all the links on a page using HTMLParser. I get quit… Read more Extract Absolute Links From A Page Using Htmlparser

I have the following html code: Copy Good luck! ;) Read more How Can I Center My Ul Li List In Css?

I wonder if there exists an easy and solid way to style ul and li elements so that when using list-… Read more Align

Elements With List-type:outside Style To The Content Border Consistently

My javascript code like this : $(function(){ $('input[type='radio']').click(fun… Read more How Can I Unify Text That Take From Multiple Group Radio Button?

i read lots of threads and the Mike's blog but i haven't found how to solve my problem. I&#… Read more How To Show Two D3.js Diagrams On The Same Page

I'd like to ask, why there is a gap around the images. Is there something about this behaviour … Read more Why Images Makes A Gap Around?

I am using CodeIgniter. I am working on the small project which is a Batch list. Now If an admin wa… Read more How To Call Json From Multiple Nested If Condition

I am new to PHP and trying to figure this out- right now on one page I have a search form that crea… Read more Php/mysql - How To Pass Variables From Class To Separate Index.php? Profile Pages?

I have a HTML canvas (using KineticJS, however canvas aficionados should still chime in) that loads… Read more Is It Possible To Avoid "the Operation Is Insecure" When Using Canvas?

I've got a list and want to select the previous and next of the one I am hovering Item1 … Read more Css: Select Previous Sibling

Datalist attribute is not working in Google chrome, it is working fine in Firefox Please have a loo… Read more Datalist Attribute Is Not Working In Google Chrome

I'm working on a project that would really benefit from filling the whole screen -- it's es… Read more Resolution Independent Websites? (or, "scaling An Entire Website To Fill The Browser")

I have the following working code. It takes the input data and display the histogram based on a thr… Read more How To Make Label In Histogram Respond To Dynamic User Input

I am developing a web app with Flask and speech recognition for audio inputs, processing and displa… Read more Microphone Input In Html For Flask

I was struggling to understand why this simple CSS class selector was not being picked by my HTML e… Read more Css Space Before Selector

I have an XML file with certain data which I have to convert it into HTML Table. There are 3-4 tabl… Read more Passing Xml Attribute Value To Html Atrribute Value Using Xslt

I am currently using the Gatsby Starter blog (https://github.com/gatsbyjs/gatsby-starter-blog) - I … Read more Setting Up Gatsby Blog Hierarchical Url Slug Structure

I'm working on a more secure streaming method for our video player. Because each file requires … Read more Streaming An Mp4 Through A Php File Progressively

window.getComputedStyle() method accepts only element nodes. Is there any way to reliably get the s… Read more How Do I Get The Perceived Styling Of A Text Node?

I have a tagging plugin which maintains it's selection of tags in two forms. One is an internal… Read more Order Of Selection In Html Select Multiple?

I am building a website and I have a questions with forms on login/registration page. I have a few … Read more Is Javascript Validation Enough To Keep My Forms Secure?

I have SVG file, it consists of multiple links. Once user clicks on the link, page should display r… Read more Calling Javascript Function From Svg File

How can I get from kendo combobox value? I always getting undefined on it.. I've used these va… Read more How To Get Value From Kendo Combobox

I have a row of DIVs for my navigation and I'm trying to vertically center an image with an anc… Read more How Can I Vertically Center An Image With An Anchor Inside A Div?

I am trying to make a HTML CSS Email template that can work on all email clients. I manage to get a… Read more Css Email Template At Outlook Does Not Display Correctly

I need to bind the 'enter' key on the keyboard to a specific javascript method, but ONLY wh… Read more Bind Textbox To 'enter' Key

I'm creating a simple slideshow using jQuery and some javascript, but I'm running into issu… Read more Issues With Setinterval

If I want my textarea to be hidden, how do I do it? Solution 1: You have a few options, here are s… Read more If I Want My Textarea To Be Hidden, How Do I Do It?