I've been using W3Schools' Javascript library to handle HTML includes onto other HTML pages. Everything has been going good, except I'm running into some formatting issues. When the include processes, it puts the HTML into the body tag when I'd prefer it into a different tag. I don't want my body tag formatting to impact the HTML content that's imported. I'm open to any solutions, but I'd prefer something that allows me to specify a specific tag in the HTML document to be imported into.
I've tried putting the Javascript call into the head or outside of the body tag but haven't had any luck.
Here's the code used by W3Schools: https://www.w3schools.com/howto/howto_html_include.asp
<script src="https://www.w3schools.com/lib/w3.js"></script>
<!-- import header -->
<div w3-include-HTML="./includes/header.html"></div>
<!-- import navigation bar -->
<div w3-include-HTML="./includes/navbar.html"></div>
<!-- Script to Handle W3Schools HTML Includes -->
<script>
w3.includeHTML();
</script>
Thanks for the help! I'm hoping there's a good way to do this, otherwise I guess I can format my text outside of the body tag... That's far from ideal though.
Did you try to replace <script> w3.includeHTML(); </script> by <script>includeHTML(); </script> ?
Related
My main web page (index.html) follows a common structure (simplified):
<html>
<head>
<title>...</title>
<meta name=description content="...">
<link rel=stylesheet href="main.css"/>
[... including #font-face loads ]
</head>
<body>
<div id=menu>...</div>
<div id=mainContent>
...
</div>
<div id=footer>...</div>
<script src="jquery.min.js"></script>
... more scripts
<body>
</html>
The web server is well configured such that all the static files are cached and don't get reloaded on the client side if refreshing the page.
Upon choosing a link from the site, mainly from the 'menu' or the 'footer', I want to display different content within the div tag 'mainContent'. Page layout, CSS, fonts, scripts, menue, footer - all is the same. I have identified several means to achive this:
Construct a new subPage.html file copying everything from index.html, then rewrite the div 'mainContent'
with the desired other stuff and change page specifics like title, description etc.
Or use php to include the desired content in mainContent and to change the page specific values like 'title'.
Link from index.html goes to href="subpage.html".
Drawbacks:
Maintenance: when changing anything in the outside 'wrapper', I'll have to edit
every subPage.
no idea how to easily transport values from index.html
to subPage.html, beside cookie (not always permitted) or URL
parameters.
use a javascript onClick handler (event listener) to load requested content from server using XHttpsRequests and exchange the innerHtml of div mainContent.
Drawbacks:
no noscript version possible.
my changing content is probably not indexed by Google bot and alike, since it is not loaded with index.html. Would it change the situation if the 'alternativ content' was saved in .html files in the base directory, such that it would be browsable and discoverable?
Pre:
keeps javascript variables
no need to reload outer page, thus best user experience.
use a 2nd div 'mainContent2' with style="display: none". With a javascript onClick handler toggle display style of both mainContent divs to none <-> block.
Pre:
easy to implement.
all content loaded and thus SEO indexed.
Drawback:
Everything has to be loaded at once, so the index.html might get pretty big.
[4. iframe probably not an option (as the src attribut is static)]
I tend to opt to alternative #2.
Any other technics recommended? What is the 'best practice'? How is this generally done by the pros? Suggestions? Please elaborate.
I'll give you a few answers based on each option:
PHP
You can use PHP to import the header and footer instead of the main
content, that way you have just one file with a header and another
with a footer and all the pages that you create with different
contents will import the header and footer, avoiding duplications.
JS
Do you need a no-script version? I have never seen someone who disabled js but I don't know your app, it could be a pre-requirement.
You can use a modern js framework like Next + React / Nuxt + Vue / Remix / Svelte / ... There is a lot of options here that can provide you an SSR (Server Side Render) and make Google Bot happy
SPA
This seems to be a SPA. You can use some of the modern js frameworks that I mentioned in the second item. You need to think about lazing load the images too. I don't know how big is this content, but you can try google lighthouse to see if there is some problem with page size in this approach, also, you could enable the gzip on the server.
OR...
All of the above
You can use all of them together too. A frontend with a framework getting data from an API written with PHP, why not? PHP can validate the request type and delivery an HTML if it's the first request or a JSON if the application is already loaded.
Most common solution probably a variant of your option 1. But different then you think. Create a header.php with the content
<html>
<head>
<title>...</title>
<meta name=description content="...">
<link rel=stylesheet href="main.css"/>
[... including #font-face loads ]
</head>
<body>
<div id=menu>...</div>
and create a footer.php with the content:
<div id=footer>...</div>
<script src="jquery.min.js"></script>
... more scripts
<body>
</html>
Then create an index.php like
<?php include('header.php'); ?>
<div id=mainContent>
...content index page...
</div>
<?php include('footer.php'); ?>
And then create subpages like subpage.php
<?php include('header.php'); ?>
<div id=mainContent>
...content subpage...
</div>
<?php include('footer.php'); ?>
This way if anything in the header or footer needs to change you edit the header.php file and the changes will take effect on all pages because the header.php gets included on every page.
I created a blank jekyll blog and I included parallax.js with CDNlink and the link is :
(script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/parallax/3.1.0/parallax.min.js">)
but when I ran it in localhost the moving effect that I have imported doesn't work. In my rails app that I created it works perfect there.Also if I deploy it on GITHUB pages will the parallax work there?What should I do to fix that issue?
I upload in github pages https://lazospap.github.io/LazPap/. There are a lot to be fixed but for now i can't see the images.
YES, parallax effect can work on Github pages.
You probably just made some coding errors/mistakes.
Rules to follow
1. Nothing can be placed after </body></html>
The first mistake I see is that nothing can be placed after </body></html>. Your layout file contains this:
</body>
</html>
<!-- Bootstrap core JavaScript -->
<script src="https://blackrockdigital.github.io/startbootstrap-creative/vendor/jquery/jquery.min.js"></script>
<script src="https://blackrockdigital.github.io/startbootstrap-creative/vendor/bootstrap/js/bootstrap.bundle.min.js"></script>
<!-- Plugin JavaScript -->
<script src="https://blackrockdigital.github.io/startbootstrap-creative/vendor/jquery-easing/jquery.easing.min.js"></script>
<script src="https://blackrockdigital.github.io/startbootstrap-creative/vendor/magnific-popup/jquery.magnific-popup.min.js"></script>
<!-- Custom scripts for this template -->
<script src="https://blackrockdigital.github.io/startbootstrap-creative/js/creative.min.js"></script>
It should be:
<!-- Bootstrap core JavaScript -->
<script src="https://blackrockdigital.github.io/startbootstrap-creative/vendor/jquery/jquery.min.js"></script>
<script src="https://blackrockdigital.github.io/startbootstrap-creative/vendor/bootstrap/js/bootstrap.bundle.min.js"></script>
<!-- Plugin JavaScript -->
<script src="https://blackrockdigital.github.io/startbootstrap-creative/vendor/jquery-easing/jquery.easing.min.js"></script>
<script src="https://blackrockdigital.github.io/startbootstrap-creative/vendor/magnific-popup/jquery.magnific-popup.min.js"></script>
<!-- Custom scripts for this template -->
<script src="https://blackrockdigital.github.io/startbootstrap-creative/js/creative.min.js"></script>
</body></html>
2. Open and close the body only once
You embed the content in your layout. Your layout has a body open and a body close tag... however, your content also has a body open and a body close tag. Therefore you open and close the body of your HTML file twice. Remove it in your content file and your are set. Find <body id="page-top"> and </body> in this file and this file and remove them.
3. Use layouts for (complex) HTML and JS
The code < 150 on line 184 gets wrongfully escaped. This is probably due to the fact that you are writing complex HTML and JS in a markdown file. You could prevent this by combining the HTML from 'index.md' and 'default.html' in a file 'home.html' in your layout directory. Your index.md file should then reference 'home' as layout instead of 'default'. Here is the error:
SyntaxError: missing ) after conditionLazPap:184:34
4. Call functions only after they are declared
I know it gets kind of hard to grasp when you use 'defer', but the rule of thumb is to call a function only after you have declared it. Parallax is a function that gets declared in line 71 of default.html:
<script type="text/javascript"src="https://cdnjs.cloudflare.com/ajax/libs/parallax/3.1.0/parallax.min.js"></script>
But you call the function inside the content part of that same file on line 38. That does not work, and if it does it is solely due to the 'defer' statement.
5. Use a baseurl
When you host on Github Pages you need a basurl. The reference to your images is /images/HTML_5.png. Because you host on Github pages your baseurl should be /LazPap so your url becomes /LazPap/images/HTML_5.png. More reading about baseurl...
A simpler solution...
You started out with a copy of this code: https://blackrockdigital.github.io/startbootstrap-creative/. The easiest way to achieve a parallax-like effect would be to add JUST ONE CSS rule to the original code:
header.masthead {background-attachment: fixed;}
Although it is the solution I would use, it is probably not what you want, as you specifically mentioned parallax and a javascript solution.
I need to be able to embed HTML snippets (nested elements and CSS) fetched from a remote api inside my document, in a way that their CSS won't affect on my whole document.
I need to fetch (random) gmail messages HTMLs and embed them in my website. The thing is that most messages have their CSS tags to style the message html. The problem is that some of these CSS mess up with my own document CSS. How can I embed an html snippet with CSS, in a way that it will have its own scope and not interact with what's outside of it?
<html>
<body>
<h1>Your gmail messages</h1>
<div id="gmail-message">
<!-- Here to be injected automatically. Changing classes, etc is not possible -->
<h1>This a gmail message</h1>
<style type="text/css">
h1 {
color: red;
}
</style>
</div>
</body>
</html>
The h1 tag outside the gmail-message div is also affected and is therefore red.
What do I need to do to get around this?
One solution would be to use an iframe.
Another solution would be to extract all css and html, then add an attribute (example: scope) to every html tag inside of gmail-messag.
Then modifiy the css and add an attribut selector.
Example:
<html>
<body>
<h1>Your gmail messages</h1>
<div id="gmail-message">
<!-- Here to be injected automatically. Changing classes, etc is not possible -->
<h1 scoped>This a gmail message</h1>
<style type="text/css">
h1[scoped] {
color: red;
}
</style>
</div>
</body>
</html>
But propably using an ifram is a more easy solution.
Easiest way is to use iframe / object / embed tag (tested on firefox).
If you can use Javascript and HTML5 you can also use shadow DOM or make custom element that uses slot tag (also in shadowRoot).
You might want to look into using The Shadow DOM
An important aspect of web components is encapsulation — being able to
keep the markup structure, style, and behavior hidden and separate
from other code on the page so that different parts do not clash, and
the code can be kept nice and clean. The Shadow DOM API is a key part
of this, providing a way to attach a hidden separated DOM to an
element.
However, be aware this is new tech and, as always, Microsoft browsers don't handle it.
I've found my solution.
First, insert an empty iframe tag somewhere.
<iframe id="iframeTag" src="about:blank"></iframe>
Second, load the html snippet into that iframe, the following way:
var doc = document.getElementById('iframeTag').contentWindow.document;
doc.open();
doc.write(<html_snippet>);
doc.close();
This way the <html_snippet>'s css won't mix up with the outer document's.
Use the srcdoc attribute on iframe to scope your HTML and CSS.
<iframe srcdoc="<p>Hello world!</p>"></iframe>
It's supported on all major browsers: https://caniuse.com/iframe-srcdoc
I am looking for a simple way to get a default header on all the pages I make.
Each page has different content but uses the same header and footer throughout, also the pages rely on the scripts set in the header and footer of the page to format the content.
I have tried using frameset but the content doesn't get the scripts or style defined in the header.
Basically I want to just specify the content in the html and automatically get the html of the header and footer. (i hope this makes sense)
(this is the header of the page, sorry its messy, this is for work and i was given a site and asked to fix it)
header.html pastebin
You can try something like this. You can save the data in a html file and load the data into other using the jquery.
You can use the jquery methods to load the data into header and footer, you may use a single html or even two files.
<html>
<head>
<script src="jquery.js"></script>
<script>
$(function(){
$(".header").load("other.html");
});
</script>
</head>
<body>
<div class="header"></div>
</body>
</html>
Other.html
This is header data.
http://www.hongkiat.com/blog/html-import/ Check this link, you may get an answer.
i am a beginner in html. i would like to do something like this,I am using the below code to create tabs, now i have the contents of the section in a different html file. Please tell me how to load that html file inside the section.
<html>
<head>
<link rel="stylesheet" href="tabs.css">
<body>
<article class="tabs">
<section id="tab1">
<h2>NewRecord</h2>
<p>This content appears on tab 1.</p>
</section>
</article>
</body>
</head>
</html>
Option 1
Use iframes to archive this. It will display another page.
Option 2
Use Ajax Example
HTML is the structure, CSS is the style (appearance), and JavaScript is the behavior. You can't load data with just structure alone, you'll need to introduce some scripts in there. jQuery is a common library that's fairly easy to learn, but there's many available.
You can load the content from another HTML file via jQuery '.load()' method.
Step 1 - Include jQuery in your code.
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
Step 2 - Add this code before the closing </body> tag.
<script>
$(document).ready(function() {
$('#tab1').load('html-file-1.html');
});
</script>
Step 3 - Your external html file html-file-1.html contains nothing but simple html tags to represent the content you want to load within the section.