HTML (HyperText Markup Language) and CSS (Cascading Style Sheets) are two fundamental languages for the creation and design of web pages:

HTML (HyperText Markup Language)

It is the standard language used to create the structure and content of a web page. HTML uses tags to define different elements in a web page, such as headings, paragraphs, images, links, forms, among others. These tags allow web browsers to interpret and display content properly.

Learn how to make web pages in HTML/ CSS 

SEO structure in HTML 

  • Page title (<title>): The page title must be descriptive, relevant and contain keywords related to the page content.

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<head> <title>Page title</title> </head>.

  • Meta description: (<meta name=”description” content=”…”>)

 The meta description is a brief and relevant summary of the page content. 

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<head> <meta name=”description” content=”Description of the page…”> </head>

  • Headings (<h1>, <h2>, <h3>, etc.): Use HTML headings to structure your content in a hierarchical way. The main heading (<h1>) should contain the main keyword and the secondary headings (<h2>, <h3>, etc.) should be descriptive and relevant.

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<body> <h1>Título principal de la página</h1> <h2>Subtítulo</h2> <p>Contenido…</p> </body>

  • Etiquetas de imagen (<img>): Asegúrate de incluir etiquetas alt descriptivas en las imágenes para proporcionar texto alternativo que describa el contenido de la imagen. This is important for accessibility and can also help with SEO.

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<img src=”imagen.jpg” alt=”Texto alternativo descriptivo”>

  • Links (<a>): Use links with descriptive and relevant anchor text. Include keywords related to the page you are linking to in the link text.

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<a href=”https://ejemplo.com” title=”Link descriptive text”>Link</a>.

  • Semantic markup (<article>, <section>, <aside>, <nav>): Use HTML5 semantic elements to structure your content in a clear and meaningful way. This helps search engines understand the relationship between different parts of your page.

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<body> <article> <h2>Título del artículo</h2> <p>Contenido…</p> </article> <nav> <ul> <li><a href=”#”>Enlace de navegación</a></li> </ul> </nav> </body>

CSS (Cascading Style Sheets).

Es un lenguaje utilizado para dar estilo y diseño a una página web creada con HTML. 

  • Diseño responsivo: Utiliza CSS para crear un diseño responsivo que se adapte a diferentes tamaños de pantalla y dispositivos. 
  • Adequate contrast: Make sure there is sufficient contrast between text and background to ensure that the content is readable for all users, including those with vision problems.
  • Clear and easy navigation: Use CSS styles to create clear and user-friendly navigation on your website. 

This includes using appropriate colors, fonts and spacing.

  • Clean and minimalist design: Adopt a clean and minimalist design for your website, avoiding visual clutter.
  • Image optimization: Use CSS to apply image optimization techniques, such as compression and scaling, to reduce the size of image files without sacrificing visual quality. 
  • Styles for metadata and microdata: If you use microdata to add structured information to your content (such as product data, reviews, events, etc.), use CSS to style these elements so that they are readable and visually appealing to users.
  • Styles for forms: If your website includes forms, use CSS to style them in a way that is consistent with the overall design of your site and to improve the usability of input fields and submit buttons.
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