html,css,html5,css3,pseudo-element , What does ::before on its own line do in HTML?
What does ::before on its own line do in HTML?
This might be a stupid question, but if I have something like this:
<header id="headerId" class="headerClass" style="display: block;">
What does this 'before' in the html do?
I understand if I do the following in the CSS it adds these properties before every p element: (this is from a W3Schools example)
content: "Read this -";
You're seeing that
::before because that is how your browser's developer tools represents a CSS
::before pseudo-element in the document tree view.
If you literally had a string of text "::before" in your HTML file, it would do nothing special as it has no meaning in HTML; it would just show up as the text "::before" on your page.
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