Sorry if this sounds like a really stupid question, but I need to make a link change colour when you are on the page it links to.
For example, when you are on the "Questions" page of StackOverflow, the link at the top changes colour. How do you do this?
It's a server-side thing -- when rendering the page, add a class like "current-page" to the link. Then you can style it separately from the other links.
For example, StackOverflow renders the links with class="youarehere" when it points to the page you're already on.
It really depends on how your page is constructed. Typically, I would do this using CSS, and assign give the link an id called "active"...
<a id="active" href="thisPage.html">this page</a>
...and in the CSS...
a#active { color: yellow; }
Obviously this is a fairly simplistic example, but it illustrates the general idea.
You can do this without having to actually modify the links themselves for each page.
In the Stack Overflow clone I'm building with Django, I'm doing this:
<!-- base.html -->
...
<body class="{% block bodyclass %}{% endblock %}">
...
<div id="nav">
<ul>
<li id="nav-questions">Questions</li>
<li id="nav-tags">Tags</li>
<li id="nav-users">Users</li>
<li id="nav-badges">Badges</li>
<li id="nav-ask-question">Ask Question</li>
</ul>
</div>
Then filling in the bodyclass like so in page templates:
<!-- questions.html -->
{% extends "base.html" %}
{% block bodyclass %}questions{% endblock %}
...
Then, with the following CSS, the appropriate link is highlighted for each page:
body.questions #nav-questions a,
body.tags #nav-tags a,
body.users #nav-users a,
body.badges #nav-badges a,
body.ask-question #nav-ask-question a { background-color: #f90; }
Set a class on the body tag for each page (manually or server-side). Then in your CSS use that class to identify which page you're on and update the style on the item accordingly.
body.questions #questionsTab
{
color: #f00;
}
Here's a good longer explanation
If for some reason you don't want to handle this on the server-side, you can try this:
// assuming this JS function is called when page loads
onload()
{
if (location.href.indexOf('/questions') > 0)
{
document.getElementById('questionsLink').className = 'questionsStyleOn';
}
}
Server side code is the easiest, by just setting a class on the link on the current page, but this is also possible on the client-side with JavaScript, setting a second class on all elements in a particular class which have an href which matches the current page.
You could use either document.getElementsByTagName() or document.links[] and look only for those in a class denoting your navigation links and then set a second class denoting current if it matches the current URL.
The URLs will be relative, while document.URL will not. But you can sometimes have this same problem with relative vs. absolute on the server-side if you are generating content from a table-driven design and the users can put either absolute or relative URLs anyway.
You need code on the server for this. A simplistic approach is to compare the URL of the current page to the URL in the link; however consider that there are many different URLs in stackoverflow which all result in the 'Questions' tab being highlighted.
A more sophisticated version can either put something in the session when you change pages (not too robust); store a list of pages/URL patterns which are relevant to each menu item; or within the code of the page itself, set a variable to determine which item to highlight.
Then, as John Millikin suggests, put a class on the link or on one of its parent elements such as "current-page" which will control the colour of it.
Related
I'm making a jekyll blog, and this is the link.
https://jinmc.github.io/programmingTips/
You can also look at the code from here : https://github.com/jinmc/programmingTips
Right now I just finished making the sidebars,
and I know how it works, and implemented on just one keyword csharp.
Rest of it doesn't work.
I implemented this by making a csharp.html file and implementing this code on it.
---
layout: default
sidebar: sidebar_nav
---
<h1>C Sharp</h1>
<ul>
{% for posts in site.categories.csharp %}
<li>
{%- assign date_format = site.minima.date_format | default: "%b %-d, %Y" -%}
<span class="post-meta">{{ posts.date | date: date_format }}</span>
<h3>
<a class="post-link" href="{{ posts.url | relative_url }}">{{posts.title}}</a>
</h3>
<p>{{posts.meta}}</p>
</li>
{% endfor %}
</ul>
something like this.
I can make every html regarding the sidebar navigations but I'm starting to wonder
if this is good practice as the content inside it would be almost similar. Plus, I'll have to make every other html files every time I make a new category. But still, can't think of anything that could automate this.
Thanks in advance!
I would recommend writing a JavaScript method that listens for clicks on the navbar elements and selectively hiding or showing the relevant post links.
Modify _layouts/home.html so that it renders a ul containing all post links and a ul for each category that contains all the post links for that category. Add ids to these ul element that identify the category or 'all'. Use jQuery to hide all the category specific ul elements on page load. Use another script in the _layouts/default.html defining a global var initialized to 'all', a click listener that listens for which the different category clicks in the navbar and hides the previously shown ul and shows the desired ul by applying css styles. You can also change text on the page to show what the current category is.
Is there a css selector for "no fragment identifier present"? The opposite of :target.
The thing is, I'm making a document where different parts of it are visible depending on which fragment identifier you give it. Think of it as a sprite file, only for HTML.
So it looks like this
<style>
section {display:none}
section:target {display:block}
</style>
<body>
<section id="one">The first block (showing with #one)</section>
<section id="two">The second block (showing with #two)</section>
<section id="three">The third block (showing with #three)</section>
</body>
And the user sees the first section if it's displayed with document.html#one on the location bar, etc.
The idea is that the browser will cache the html page (since it is just static html) and no other content needs to be loaded when displaying another block of text, thus minimising server load.
But the file looks stupidly empty when you call it up without a fragment identifier, so I wonder if there's a way to make all of it visible in that case, without any hidden sections. CSS only, no JS or server side processing; otherwise it wouldn't be static HTML!
Edit:
Unlike the proposed duplicates, I would like to "simply" show the whole document when there's no fragment identifier, not just one element in particular.
In other words, the default (in the absence of any #) should be to show everything; only if there is an # should everything but the target be hidden.
The duplicates don't address this situation at all.
With some extra markup and more verbose and specific CSS to write, to avoid javaScript. Needs to be updated each time HTML structure is updated .
:target ~section {
display:none;
}
#one:target ~.one,
#two:target ~.two,
#three:target ~.three {
display:block;
}
<nav>
One
Two
Three
None of below targets
</nav>
<!-- html anchor to allow use of :target ~ selectors -->
<a id="one"></a>
<a id="two"></a>
<a id="three"></a>
<!-- end anchor -->
<section class="one">The first block (showing with #one)</section>
<section class="two">The second block (showing with #two)</section>
<section class="three">The third block (showing with #three)</section>
I am done with redirection to target page but what I want is to redirect to particular <div> of the page. How can this be achieved?
You can do it in two ways.
1) [via Javascript (+jQuery)]
home
$('#home').click(function(){
$(document).scrollTop(100) // any value you need
});
2) [via pure HTML]
home
<section id="home_section"></section>
<div id="go1">
<!-- content -->
</div>
<div id="go2">
<!-- content -->
</div>
<div id="go3">
<!-- content -->
</div>
...
Just append url id as below ,you are done !
news.html#go1
news.html#go2
news.html#go3
This is the easiest way for me
<li>Prices</li> (This could be a paragraph or a button)</li>
<div id="prices">
// Prices section
</div>
You need to add id attribute to that section of page you want to show and pass id name at the end of url using hash (#) symbol. For example you want to redirect user to div with id='test'
<div id="test">your section content</div>
Then you should use this url structure:
http://example.com/your_page.php?some_param=1#test
Basically you use anchor tags in HTML to get your job done.
You'l probably be familiar with them as:
As HTML convention, while defining a section, you can give each section an ID for identifiers :
<section id= "blahblah" ></section>
And you can redirect to the section by just mentioning them in the anchor tags :
You can link the html code with css.
In c#
Response.Redirect("http://www.example.com/index.aspx#id_in_css");
Here are two conditions,
1) If you want to redirect to div from different page:
Page
if(window.location.href.includes("div-panel"))
{
$(document).scrollTop(450);
}
2) If you want to redirect to div in same page:
<button id="button-click">Panel</button>
$('#button-click').click(function(){
$(document).scrollTop(450);
});
Give that section an id (lets say: section1) and then the redirect url will be http://www.sample.com/page#section1 .
Note: the # and the keyword, that's the id of the section you want your browser to scroll to.
Read more about Fragment Identifier here
If you really want that smooth sliding to the designed section, here's a quick step-by-step:
In the section you want, create an id property, i.e:
<section id="products">
next, using an anchor tag, insert # + the id for the section on the href property:
<a href="#products">
Now, once clicked, the page will center the section pointed on the anchor tag. But this will happen brutely. In order to smooth the scrolling process, in your CSS file, use this snippet:
html {
scroll-behavior: smooth;
}
And that's the simplest way!
There is also ways for doing it with native JavaScript and JQuery. For more, i recommend the article on CSS Tricks -> https://css-tricks.com/snippets/jquery/smooth-scrolling/
first you need add id where you want to redirect
<section class="com-padd com-padd-redu-top" id="deals-home">
than add
< a href="{% url 'home' %}#deals-home">Go to Home that page</a>
I am trying to create a set of links to specific sections in the page using the <a href="#..."> notation, but it doesn't seem to work. Clicking on the link seems to do nothing and right-click -> open in a new tab changes the url but does not move to a different section of the page. I am using Firefox 28.0. My links are as follows:
<div>
<p>Contents</p>
<ul>
<li>Map</li>
<li>Timing</li>
<li>Timing Details</li>
</ul>
</div>
And they should be linking to:
<div id="map">[content]</div>
<div id="timing">[content]</div>
<div id="timingdetails">[content]</div>
Links to external webpages work fine. Placing the id="..." feature inside an <a> tag instead did not fix the problem. My webpage url is of the form http://127.0.0.1/foo/bar/baz/. This is within a Python Django project.
Any idea why this isn't working?
Every href needs a corresponding anchor, whose name or id attribute must match the href (without the # sign). E.g.,
Map
<a name="map">[content]</a>
An enclosing div is not necessary, if not used for other purposes.
Wow, thanks for pointing that out OP. Apparently Mozilla Firefox doesn't associate the id attribute with a location in the HTML Document for elements other than <a> but uses the name attribute instead, and Google Chrome does exactly the opposite. The most cross-browser proof solution would be to either:
1.Give your anchor divs both a name and an id to ensure max. browser compatibility, like:
Go to Map <!-- Link -->
----
<div id="map" name="map"></div> <!-- actual anchor -->
Demo: http://jsbin.com/feqeh/3/edit
2.Only use <a> tags with the name attribute as anchors.
This will allow the on-page links to work in all browsers.
what happened with me is that the href does not work second time and that because I should Remove hash value first,,
take look how I resolved it
go to Content 1
function resetHref() {
location.hash = '';
}
Just resurrecting this post because I had a similar problem and the reason was something else.
In my case it was because we had:
<base href="http://mywebsite.com/">
defined on the .
Obviously, don't just remove it, because you need it if you are using relative paths.
Read more here:
https://www.w3schools.com/tags/tag_base.asp
Content 1
Content 2
Content 3
....
<a name="1"></a>Text here for content 1
<a name="2"></a>Text here for content 2
<a name="3"></a>Text here for content 3
When clicking on "Content 1" it will take directly to "Text here for Content 1.
Guaranteed!
Today being March of 2022, I had a specific occurrence of this problem that illustrates how the whole web environment is an "issue" today.
Same requirement: links that go to a section of the page.
It worked on my desktop's Chrome and Firefox, but not on my client's and neither on my Android's Chrome.
After reading multiple threads several times for a few hours, I found out that, in order for this behavior to be the most consistent across browsers and browser versions, you have to implement both things:
a container with an id, and
an anchor with a name property,
The most important part is that the anchor tag with a name, must have content inside of it.
So, you have your links
Go to section
<!-- more links -->
And you have the sections you want your links to go to
<div id="page-section">
<a name="page-section" class="collapse"> placeholder-content (important) </a>
<!-- your section content -->
</div>
Since you MUST have content inside the anchor with the name, you can then hide it in several ways.
My approach was to just set it's height to 0.
In order for the height to be effective, the anchor tag's display property should be set to block or inline-block for example.
.collapse {
height: 0px;
overflow: hidden;
display: block;
}
Finally it all worked, and I have to thank the many developers who struggle with this sort of thing (which should be much easier to do, but, the web...), and all the people who answer questions like this and share their knowledge.
This might help
JS:
function goto($hashtag){
document.location = "index.html#" + $hashtag;
}
HTML :
<li><a onclick="goto('aboutus')">ABOUT</a></li>
In my case The input tag was the problem. I implemented my tabs by input (radio buttons) which was preventing the anchor tag's behaviour.
It was like this at first (not working):
<a href="#name">
<li>
<label></label>
<input></input>
</li>
</a>
Then I removed the input tag and it worked:
<a href="#name">
<li>
<label></label>
// <input></input> <!-- removed it -->
</li>
</a>
Make sure you're not using preventDefault in javascript
Here is something that I finally got to work in IE, Chrome and Firefox.
Around any text create an anchor tag like this:
<a class="anchor" id="X" name="X">text</a>
Set "X" to whatever you want.
You must enclose something in the anchor tags such as text or an image. It will NOT work without these.
For the link, use this:
text
As for getting rid of the CSS for links using our anchor tag use something like this:
a.anchor {
color:#000;
text-decoration:none;
}
This seems to work well.
I`ve seen on various websites, some links appear like this: http://www.myserver.com/page.html#something and when I click on it, it just moves to another portion of the page.
I want to know how to do this. Is it only the URL of the <a href> atrribute?
The fragment at the end of the url coresponds to an ID on the page you're visiting.
If in my page I have a section such as:
<div id="comments">
...
</div>
Then I can take the user to this section by attaching #comments to the pages URL
(http://www.example.com/page.html#comments)
Link to comments
Update
Some of the other answers here correctly point out that you can create an anchor with a name attribute as: <a name="example"></a>.
Although this is technically correct, it's also a very antiquated way of doing things and something I'd recommend you avoid. It's very 1997 as some might say :-)
The text after the hashtag corresponts with an anchor on the page. An anchor is a hidden element on the page which you can link to.
Think for example about a large page with an to top link in it
To create an anchor use:
<a name="C4"></a>
To link to it use: Text
Or you can even link to an id of an element
Check out: links (aka anchors)
Also note that you can use <a name="something"></a> or <a id="something"></a>
or using divs <div id="something"></div>
This is a link to a bookmark on the given page (or even just #something on the current page).
To make it work, you need to define something. You can do this using the name attribute of an <a> tag.
http://programming.top54u.com/post/HTML-Anchor-Bookmark-Tag-Links.aspx