I am trying to get the code for the "Heavy Plus Sign" emoji (➕) working in a CSS ::before pseudo-element. The Unicode number for it is U+2795. My [non-working] code is as follows:
.plussign::before {
content: "\12795";
}
When I assign an element to use class="plussign", all I see is a little black square (the generic unknown character)
What should I use for the "content" property? The slash-one (\1) method works for all my other emojis. For example, this works for the gemstone (💎, Unicode U+1F48E):
.gem::before {
content: "\1F48E";
}
Why doesn't the "Heavy Plus Sign" emoji work in the same format?
You're looking for \2795 (no leading 1, the codepoint is U+2795, not U+12795):
.plussign::before {
content: "\2795";
}
<div class="plussign"></div>
Or of course, the character itself:
.plussign::before {
content: "➕";
}
<div class="plussign"></div>
Related
I'm writing a custom theme for a website, so I cannot use Javascript. I would like to convert some numbers to roman numerals.
I tried this:
.score:before {
counter-reset: mycounter attr(score number, 0);
content: counter(mycounter, upper-roman) " ";
}
<p><span class="score" score="11">points</span></p>
Alas, it seems that "attr(score number, 0)" is always 0. It's not because of a fallback, since when I change the fallback number to 42, the result stays 0. It's not a problem somewhere else in the code, because it works fine when I replace attr(...) by a number like 42.
So why isn't this code showing what it should?
Even today, attr() is still only supported for content: usage, not for anything else, as you can see from all the red flags here: https://caniuse.com/#feat=css3-attr
Screenshot:
You can use var to pass proper values to your css files and counter, for example:
.score {
counter-increment: my-awesome-counter 0;
counter-reset: my-awesome-counter var(--data-score);
}
.score:before {
content: counter(my-awesome-counter, upper-roman);
margin-right: 5px;
}
<p><span style="--data-score:11" class="score" score='11'>points</span></p>
I am trying to include a price through a pseudo element
h3:after{
content: " (+ $75)";
}
<h3>price</h3>
But using CSS minifier prevents the "$75" to appear.
Is there a way to escape the compiler?
You can use the entity number. Although I must caution you, this looks like the beginnings of badly designed road that will lead to horrible code practices.
h3:after{
content: " (+ \0024 75)";
}
<h3>price</h3>
Use it as a data-attribute:
h3:after{
content: " (+ " attr(data-symbole)"75)";
}
<h3 data-symbole="$">price</h3>
Or use all the text as a data-attribute:
h3:after{
content: attr(data-content);
}
<h3 data-content=" (+ $75)">price</h3>
I'll preface this question by saying I know this question has been asked before, but all the answers I can find for these appear to reference an obsolete solution that no longer works (At least in Firefox 56 [64 bit])
The obsolete method is that there used to be an automatically instantiated CSS counter named pages, so a simple bit of CSS generated from this SASS:
footer {
position: fixed;
bottom: 0;
left: 20px;
&:after {
counter-increment: page;
content: "Page " counter(page) " of " counter(pages);
}
}
Used to do what I want. Now it displays "Page [x] of 0".
I have tried using this bit of CSS to recreate my own max-page counter:
#page {
counter-increment: maxpage;
}
However this also returns 0 when used in my footer.
Is there any reasonably cross-browser friendly means of getting this functionality?
As of CSS3 you can specify counters in the #page rule. Here is an example:
#page { counter-increment: page }
The above rule instructs the layout engine to create a counter called "page" (it is called page by convention, it can be anything). This counter is incremented for each page. As with any counter, you can then use the current value of the counter anywhere in the document
For example with this CSS rule:
#pageNumber { content: counter(page) }
and this piece of HTML:
<span id="pageNumber"></span>
You can use the current page number counter as content in the HTML document. You can even go further. Say you want to start your page number at 10. You can then use the #page:first rule to reset the counter for the first page to value 9.
#page { counter-increment: page }
#page:first { counter-reset: page 9 }
The combination of both rules will reset the counter for the first page to 9. Then for each page (including the first) it will increment the counter. This results in a counter value of 10 for the first page, 11 for the second and so on.
You can also use pure css
Example:
#page {
counter-increment: page;
counter-reset: page 1;
#top-right {
content: "Page " counter(page) " of " counter(pages);
}
}
... in theory. In real world only PrinceXML supports this.
Not using #page, but I have gotten pure CSS page numbers to work in Firefox 20:
The CSS is:
#content {
display: table;
}
#pageFooter {
display: table-footer-group;
}
#pageFooter:after {
counter-increment: page;
content: counter(page);
}
And the HTML code is:
<div id="content">
<div id="pageFooter">Page </div>
multi-page content here...
</div>
It works on most major browsers
According to mozilla docs,
CSS counters let you adjust the appearance of content based on its
location in a document.
So, if your css rule applies to multiple element, it will count all that elements.
If you are using header and footer element which basically appear 1 time in document and multiple time in print, counter-increment won't work because in document it has only 1 appearance.
I am using a CMS that allows data place holders with braces, like so:
Name: {First_Name} <br>
Email: {Email} <br>
Phone: {Phone} <br>
However it doesn't give me any way to do conditional output, like I can't hide the Phone line if the phone field is blank.
The CMS doesn't allow javascript or server side code. I came up with this trick:
Name: {First_Name} <br>
Email: {Email} <br>
<div style="display:none{Phone}">Phone: {Phone} <br></div>
If the person has no phone number, the div ends up display:none, but if they do, the div ends up with a nonsense value for display, and the whole div shows up.
It works in IE8, IE9, FF14, Chrome
Any reason I shouldn't do this?
No, that's absolutely fine; a value that's not understood by the browser, in CSS, doesn't result in an error, it simply ignores that value and displays the element with its default setting for that property.
[For] illegal values. User agents must ignore a declaration with an illegal value. For example:
img { float: left } /* correct CSS 2.1 */
img { float: left here } /* "here" is not a value of 'float' */
img { background: "red" } /* keywords cannot be quoted */
img { border-width: 3 } /* a unit must be specified for length values */
A CSS 2.1 parser would honor the first rule and ignore the rest, as if the style sheet had been:
img { float: left }
img { }
img { }
img { }
Citation: http://www.w3.org/TR/CSS21/syndata.html#parsing-errors
I have the following HTML code:
<div id="working">Touch Me!</div>
<div id="notworking">Don't Touch Me!</div>
And I have this CSS:
#working:hover:after{
content: "Nice Touch";
color: #0C6;
}
#notworking:hover:after{
content: "I Said Don't Touch Me";
color: #C30;
}
This code is working fine (my example is here):
http://jsfiddle.net/gchoken/NaEPq/
My problem is that when I use double quotes for "I Said Don't Touch Me", I get a warning.
CSS:
#notworking:hover:after{
content: ""I Said Don't Touch Me"";
color: #C30;
}
Warning message:
Warning: Found unclosed string '";'.
So, how exactly can I escape single or double quotes in CSS?
Use a backslash.
content:"i said don\"t Touch me";
Same goes for single quotes within single-quoted strings.
jsFiddle demo
Just use a \ to escape the "
#notworking:hover:after{
content:"i said don\"t Touch me";
color: #C30;
}
Demo # http://jsfiddle.net/NaEPq/4/