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    <h1>
        <a href="index.html">Web</a>
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            <li><a href="html.html">HTML</a></li>
            <li><a href="css.html">CSS</a></li>
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    <h3>CSS
        <p> <a href="https://en.wikipedia.org/wiki/CSS">Cascading Style Sheets (CSS)</a>
            is a style sheet language used for specifying the presentation and styling of a document written in a markup language such as HTML or XML (including XML dialects such as SVG, MathML or XHTML). <br>
            <br>
            CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.<br>

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