The content property states: Authors may include newlines in the generated content by writing the “\A” escape sequence in one of the strings after the ‘content’ property. This inserted line break is still subject to the ‘white-space’ property. See “Strings” and “Characters and case” for more information on the “\A” escape sequence. So you can … Read more
In CSS2.1, an element can only have at most one of any kind of pseudo-element at any time. (This means an element can have both a :before and an :after pseudo-element — it just cannot have more than one of each kind.) As a result, when you have multiple :before rules matching the same element, … Read more
You can’t specify inline styles for pseudo-elements. This is because pseudo-elements, like pseudo-classes (see my answer to this other question), are defined in CSS using selectors as abstractions of the document tree that can’t be expressed in HTML. An inline style attribute, on the other hand, is specified within HTML for a particular element. Since … Read more
Inline elements can’t be transformed, and pseudo elements are inline by default, so you must apply display: block or display: inline-block to transform them: #whatever:after { content: “\24B6″; display: inline-block; transform: rotate(30deg); } <div id=”whatever”>Some text </div>
Just append :after to your #alertlist li:hover selector the same way you do with your #alertlist li.selected selector: #alertlist li.selected:after, #alertlist li:hover:after { position:absolute; top: 0; right:-10px; bottom:0; border-top: 10px solid transparent; border-bottom: 10px solid transparent; border-left: 10px solid #303030; content: “”; }
Use ampersand to specify the parent selector. SCSS syntax: p { margin: 2em auto; > a { color: red; } &:before { content: “”; } &:after { content: “* * *”; } }
Unfortunately, this is not possible. Per the spec: Generated content does not alter the document tree. In particular, it is not fed back to the document language processor (e.g., for reparsing). In other words, for string values this means the value is always treated literally. It is never interpreted as markup, regardless of the document … Read more
p:after { content: none; } none is the official value to set the content, if specified, to nothing. http://www.w3schools.com/cssref/pr_gen_content.asp
Adjusting the background-size is permitted. You still need to specify width and height of the block, however. .pdflink:after { background-image: url(‘/images/pdf.png’); background-size: 10px 20px; display: inline-block; width: 10px; height: 20px; content:””; } See the full Compatibility Table at the MDN.
Pseudo-elements are treated as descendants of their associated element. To position a pseudo-element below its parent, you have to create a new stacking context to change the default stacking order. Positioning the pseudo-element (absolute) and assigning a z-index value other than “auto” creates the new stacking context. #element { position: relative; /* optional */ width: … Read more