managing css identifiers and classes that contain spaces

Question

managing css identifiers and classes that contain spaces

One of my paragraphs looks like this:

<p id="para one" class="paragraph one">Content</p>

I'm wondering how to properly represent the id and class with spaces in CSS.

When I try using the following:

#para#one{
}

.paragraph.one{
}

It doesn't seem to work with the CSS above.

css

Answer 1

Answer №1

Stumbled upon this issue myself (trying to style an existing page with a fixed id).

Here's the workaround I used to apply styling by id:

p[id='para one']{
}

Additionally, keep in mind that .paragraph.one targets elements with two classes - including those with class=" one paragraph" and class="not a paragraph this one".

Answer 2

Stumbled upon this issue myself (trying to style an existing page with a fixed id).

Here's the workaround I used to apply styling by id:

p[id='para one']{
}

Additionally, keep in mind that .paragraph.one targets elements with two classes - including those with class=" one paragraph" and class="not a paragraph this one".

Answer 3

Answer №2

Your CSS class is accurate. Instead of having a class with a space in it, you have two separate classes, "paragraph" and "one". Your CSS is effectively targeting elements that possess both of these classes:

.paragraph.one { color: red; }

This method is beneficial for breaking down different characteristics of an element into distinct classes that can be combined as needed. Additionally, keep in mind that <p class="one paragraph"> will still be selected by the same rule.

Answer 4

Your CSS class is accurate. Instead of having a class with a space in it, you have two separate classes, "paragraph" and "one". Your CSS is effectively targeting elements that possess both of these classes:

.paragraph.one { color: red; }

This method is beneficial for breaking down different characteristics of an element into distinct classes that can be combined as needed. Additionally, keep in mind that <p class="one paragraph"> will still be selected by the same rule.

Answer 5

Answer №3

class="section one"

clearly denotes multiple classes

id="part one"

might not be effective, but you'll likely end up with an id called part

Answer 6

class="section one"

clearly denotes multiple classes

id="part one"

might not be effective, but you'll likely end up with an id called part

Answer 7

Answer №4

A crucial rule to remember is that you cannot have spaces in id values or class names. When there are spaces in the value of the class attribute, it indicates that multiple classes apply to that particular element:

<p class="paragraph one"> <!--This has both "paragraph" and "one" class-->

Regarding id values according to HTML4 rules, they must begin with a letter ([A-Za-z]) followed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (.):

ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ( [0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").

In HTML5 spec, the id attribute specifies an element's unique identifier (ID) where the value must be unique within all IDs in the element's home subtree and contain at least one character. Notably, spaces are not allowed as emphasized below:

The id attribute specifies its element's unique identifier (ID). The value must be unique amongst all the IDs in the element's home subtree and must contain at least one character. The value must not contain any space characters.

Answer 8

A crucial rule to remember is that you cannot have spaces in id values or class names. When there are spaces in the value of the class attribute, it indicates that multiple classes apply to that particular element:

<p class="paragraph one"> <!--This has both "paragraph" and "one" class-->

Regarding id values according to HTML4 rules, they must begin with a letter ([A-Za-z]) followed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (.):

ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ( [0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").

In HTML5 spec, the id attribute specifies an element's unique identifier (ID) where the value must be unique within all IDs in the element's home subtree and contain at least one character. Notably, spaces are not allowed as emphasized below:

The id attribute specifies its element's unique identifier (ID). The value must be unique amongst all the IDs in the element's home subtree and must contain at least one character. The value must not contain any space characters.

Answer 9

Answer №5

Contemporary web browsers have now added support for using IDs with spaces. For instance, in Chrome 54, the following code is functional:

p#para\ one {
}

However, the syntax [id="..."] is not supported by modern browsers. Therefore, the code below will not work in Chrome 54:

p[id='para one'] {
}

This discrepancy highlights the evolving nature of browser compatibility.

Answer 10

Contemporary web browsers have now added support for using IDs with spaces. For instance, in Chrome 54, the following code is functional:

p#para\ one {
}

However, the syntax [id="..."] is not supported by modern browsers. Therefore, the code below will not work in Chrome 54:

p[id='para one'] {
}

This discrepancy highlights the evolving nature of browser compatibility.

Answer 11

Answer №6

Avoid including spaces in your code. Having a space indicates the use of two distinct classes - para and one.

Answer 12

Avoid including spaces in your code. Having a space indicates the use of two distinct classes - para and one.

Answer 13

Answer №7

There is a useful technique for understanding how certain selectors should be formatted.

Launch the DevTools in the Chrome browser (Ctrl + Shift + I)
Navigate to the "Elements" tab
Locate the html p element and click on it
In the "Elements" tab, you will see additional tabs like "Styles", "Computed", "Layout", etc. If not already selected, choose the "Styles" tab
Under the tab title bar, there are filter input and buttons ":hov", ".cls", and "+". Click on the "+" button to automatically generate a new css rule with the proper selector already set

In my scenario, I required a selector for a spaced id, as spaced class selectors are well-defined (e.g., on MDN). The generated css-selector looked like this:

p#para\ one {
  //...
}

This solution was previously mentioned in a comment on another answer, but without the DevTools tip included

Answer 14

There is a useful technique for understanding how certain selectors should be formatted.

Launch the DevTools in the Chrome browser (Ctrl + Shift + I)
Navigate to the "Elements" tab
Locate the html p element and click on it
In the "Elements" tab, you will see additional tabs like "Styles", "Computed", "Layout", etc. If not already selected, choose the "Styles" tab
Under the tab title bar, there are filter input and buttons ":hov", ".cls", and "+". Click on the "+" button to automatically generate a new css rule with the proper selector already set

In my scenario, I required a selector for a spaced id, as spaced class selectors are well-defined (e.g., on MDN). The generated css-selector looked like this:

p#para\ one {
  //...
}

This solution was previously mentioned in a comment on another answer, but without the DevTools tip included

managing css identifiers and classes that contain spaces

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

Answer №7

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