Html div id with spaces

HTML id Attribute

The HTML id attribute is used to specify a unique id for an HTML element.

You cannot have more than one element with the same id in an HTML document.

Using The id Attribute

The id attribute specifies a unique id for an HTML element. The value of the id attribute must be unique within the HTML document.

The id attribute is used to point to a specific style declaration in a style sheet. It is also used by JavaScript to access and manipulate the element with the specific id.

The syntax for id is: write a hash character (#), followed by an id name. Then, define the CSS properties within curly braces <>.

In the following example we have an element that points to the id name «myHeader». This element will be styled according to the #myHeader style definition in the head section:

Example

Note: The id name is case sensitive!

Note: The id name must contain at least one character, cannot start with a number, and must not contain whitespaces (spaces, tabs, etc.).

Difference Between Class and ID

A class name can be used by multiple HTML elements, while an id name must only be used by one HTML element within the page:

Example

/* Style all elements with the class name «city» */
.city background-color: tomato;
color: white;
padding: 10px;
>

London is the capital of England.

Paris is the capital of France.

Tokyo is the capital of Japan.

Tip: You can learn much more about CSS in our CSS Tutorial.

HTML Bookmarks with ID and Links

HTML bookmarks are used to allow readers to jump to specific parts of a webpage.

Bookmarks can be useful if your page is very long.

To use a bookmark, you must first create it, and then add a link to it.

Then, when the link is clicked, the page will scroll to the location with the bookmark.

Example

First, create a bookmark with the id attribute:

Then, add a link to the bookmark («Jump to Chapter 4»), from within the same page:

Example

Or, add a link to the bookmark («Jump to Chapter 4»), from another page:

Using The id Attribute in JavaScript

The id attribute can also be used by JavaScript to perform some tasks for that specific element.

JavaScript can access an element with a specific id with the getElementById() method:

Example

Use the id attribute to manipulate text with JavaScript:

Tip: Study JavaScript in the HTML JavaScript chapter, or in our JavaScript Tutorial.

Chapter Summary

• The id attribute is used to specify a unique id for an HTML element
• The value of the id attribute must be unique within the HTML document
• The id attribute is used by CSS and JavaScript to style/select a specific element
• The value of the id attribute is case sensitive
• The id attribute is also used to create HTML bookmarks
• JavaScript can access an element with a specific id with the getElementById() method

Источник

Handling css id and classes with spaces

Also, CSS class names can not have spaces as they are considered to be different classes. Solution 3: You are not able to find the element because of invalid class name.

How do have a single class name with a space in it using CSS [duplicate]

You can’t — there is no way of having a space within a single classname. So the element you’ve provided there doesn’t have a ‘class name with a space in it’. The element has two different classes address and full . You can of course target this element by specifying both classes like this:

If you really want ‘spaces’ in your class name, you’ll need another way of clarifying what you see as a space, such as hyphenation:

You can’t have CSS classes with spaces in them.

What you have are two seperate classes , address and full .

You can specify both of these in a selector as follows:

The two words will be treated as separate classes. If they will always be used together, consider separating with a hyphen or underscore instead. However, you can target the classes using:

This is essentially identifying an element with both the class address and the class info . That is technically different from targeting a class of address info .

For example, if you then had a following rule applied to just address it would also be applied to this element.

HTML class attribute with spaces, it is a W3C valid class?, this attribute assigns a class name or set of class names to an element. Any number of elements may be assigned the same class name or names.

CSS : handling css id and classes with spaces

CSS : handling css id and classes with spaces [ Beautify Your Computer : https://www.hows.tech/p/recommended.html ] CSS : handling css id and classes with s

Handling css id and classes with spaces

handling css id and classes with spaces — CSS [ Glasses to protect eyes while codiing : https://amzn.to/3N1ISWI ] handling css id and classes with spaces —

CSS Selector Basics — Element, Class, and ID #tryminim

Selectors allow us to target elements and apply styles. We can select a large number of Duration: 32:14

When to put space between a tag name and a class or id [duplicate]

header.classname mean you are targeting header having class as classname .

header .classname mean you are targeting the html element having class classname which is a child/descendent of header

Use header.classname when: you want to target a .classname that is a header element.

Use header .classname when: you want to target .classname descendants of a header element.

I hope this solves your question, it’s as simple as can be.

CSS Selector Basics — Element, Class, and ID #tryminim, Selectors allow us to target elements and apply styles. We can select a large number of Duration: 32:14

Spaces in CSS Selector-Webdriver

The problem here is that the «20» class expects you to use a class selector like .20 , which is not a valid selector as CSS idents must not start with a digit.

dr.findElement(By.cssSelector("div.large.\\20.columns")); 

You also have ‘] at the end of your selector string for some reason. Was this a leftover from an attempt at using an attribute selector? If so, you should be able to get away with this as well but only if the page is guaranteed to have the class names in that exact order:

dr.findElement(By.cssSelector("div[class='large 20 columns']")); 

Relying on layout-oriented class names like large is not a good idea in general. I would use just:

If this is not enough to uniquely identify the element, I would additionally check for other attributes, specific parent, child or adjacent elements.

You are not able to find the element because of invalid class name. CSS class can not start with a number(20 in your case). Also, CSS class names can not have spaces as they are considered to be different classes.

Please refer to the explaination provided here and here

Selenium Python — Finding Elements by Class Name With Spaces, Try converting class name to a CSS selector. So basically just replace spaces with dots and you’re good to go. Share. Share

Is there a difference if I put a space in CSS selectors and if I don’t? [duplicate]

Yes it makes a difference. Using a space is the descendant selector. In your example, anotherClass must be a descendant of someClass .

 Without a space, you are targeting elements that match all classes specified. In your example, matched elements must have both someClass and anotherClass .

.someClass.anotherClass will work in the case of if your class name is «someClass anotherClass», Means you have only one class including space between name.

.someClass .anotherClass It will not affect to your first class[‘someClass’] code if you have two different classes. Only second class with be affected.

Hope u will get the point.

.someClass.anotherClass will select below element

.someClass .anotherClass (descendant selector)

How whitespace is handled by HTML, CSS, and in the DOM, This is so that whitespace characters don’t impact the layout of your page. Creating space around and inside elements is the job of CSS.

Источник

On Leading and Trailing Spaces in HTML Attribute Values

In most cases, you should not use a leading or trailing space in an HTML attribute value. For example, if you add a leading or trailing space to an ID attribute, you wouldn’t be able to hook into that value in CSS using the ID selector (not that you use IDs as selectors, right?):

This happens because spaces are not allowed in an ID selector. But interestingly, there is a way around that using CSS’s attribute selector:

You get the same result with a trailing space, and you can even do something crazy like in the following example, and it will still work as long as you use the attribute selector:

Using JavaScript

Accessing the same element via the ID attribute in JavaScript will likewise fail unless you use a JavaScript technique that allows you to legally specify any of the spaces used in the value, as in the following example:

// this works document.getElementById(' example').innerHTML = 'Example text.'; // this doesn't work document.getElementById('example').innerHTML = 'Example text.'; // doesn't work with dot notation window.example.innerHTML = 'Example text.'; 

As the first two examples in the above code demonstrate, the reference to the attribute should be a string so the space can be included. But as shown on the final line, using dot notation on the Window object (which is a way to access elements by their IDs), you wouldn’t be able to legally include the space character.

Another example of spaces in attributes being meaningful is when using the type attribute on input elements:

As is the case with the ID attribute, the leading space in each of these type attributes is meaningful. So the above elements will not display as number, range, and button types, as specified, but rather as text inputs, which is the default for when the type attribute is missing.

Spaces in Attributes that aren’t Meaningful

There are examples where not all the spaces in an attribute are meaningful, some for more obvious reasons than others. The class attribute, for example, is allowed to contain spaces, because, as the spec explains, it expects “a set of space-separated tokens representing the various classes that the element belongs to”. I’m sure most of you have taken advantage of that in your stylesheets.

In those cases, the leading and trailing spaces are not really meaningful and you’d get the same result with or without them. This means the following four lines of HTML are more or less equivalent for most purposes:

In the above code, the spaces that separate two or more classes are, for the most part, the only ones that matter. The leading and trailing spaces are more or less meaningless.

Similar to the examples above using IDs, an exception would be if you were using the attribute selector to access the class attribute, as shown in the following example code and demo:

/* doesn't work */ [class='one'] < border: solid 1px red; >/* doesn't work */ [class='one two three'] < text-align: left; >/* this works */ [class=' one two three ']

And, of course, any data-* attribute value can contain spaces that are meaningful (including leading and trailing spaces) so those spaces have to be reflected when accessing the element using that attribute value.

What About Leading and Trailing Spaces in href values?

The final thing I’ll mention here is that, technically, href attribute values (i.e. URLs) are allowed to have leading and/or trailing spaces. This is mentioned in the spec:

The href attribute on a and area elements must have a value that is a valid URL potentially surrounded by spaces.

As far as I can tell, this is true for any element that uses href , including . It also seems to be true for any HTML attribute that accepts a URL as a value (e.g. ). So the following two elements in the HTML below are, for all practical purposes, equivalent:

And once again, in order to use attribute selectors (for example the starts-with attribute selector, which is common for links), you have to ensure the spaces are indicated, and the value is surrounded by quotes:

/* This will style only the first link */ [href^=' http'] < color: green; font-weight: bold; >/* This will style only the second link */ [href^=http]

So although it is legal to include a trailing or leading space in an href value, I wouldn’t recommend it due to the fact that it breaks attribute selectors (and possibly some JavaScript) that use the start or end of the URL to determine styles or other functionality.

Источник