CS651 | Web Systems
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Div tags + Common HTML layout tags

 

<div> tag

  • Block-level Element
  • Configure Specially formatted DIVISION or area of a web page
  • Line before and after
  • Can contain other block-lvel and inline elements line <p> and <span>

An example (with some CSS style applied to it) to create a "footer"

<div class=“footer">Copyright &copy; 2009</div>

 

Copyright ©2009
 

 

 

<span>

  • configure area displayed IN-LINE wiht other elements...like within a paragraph
  • NO line break before or after
  • can apply your own styling to it.

Example

<span class="Hightlight_Grey"> This is important!!! </span>

This is important!!!! 

 

We will talk about CSS in another lecture.

 

 

 

Other's to learn about

Tag Meaning / Purpose Basic Example
<header> Introductory content for a page or section; often contains logo, title, or navigation <header><h1>Site Title</h1></header>
<nav> Major navigation links for the site or a section <nav><a href="/">Home</a></nav>
<main> Primary, unique content of the page (one per page) <main><article>Content</article></main>
<section> Thematically related content with a heading <section><h2>Features</h2></section>
<article> Self-contained, reusable content (post, card, entry) <article><h2>Post</h2></article>
<aside> Tangential or supporting content (sidebar, callout) <aside>Related links</aside>
<footer> Footer content for a page or section (metadata, links) <footer>© 2026</footer>
<figure> Self-contained media with optional caption <figure><img src="x.png"></figure>

 

 

Where to learn MORE

  • https://www.w3schools.com/tags/

 

Example --section

<section>

  • A thematic grouping of contentS

  • Usually has a heading

  • Tells browsers (and devices like screen readers) this is a distinct section/area of the webpage

  • Search engines use section + heading relationships to:

    • Understand page hierarchy

    • Extract meaningful content blocks

    • Improve relevance signals

     

  • Here is example from IBM (ibm.com )

<section class="content-wrapper side cds-theme-zone-g10">
  <h3 style="margin-left: 1rem;">Continue exploring</h3>

  <div class="cds-css-grid" style="padding: 1.5rem 0 0;">

    <div class="cds--css-grid-column cds--sm:col-span-4">
      <c4d-content-item>
        <c4d-link-with-icon
          href="https://www.ibm.com/"
          data-autoid="c4d-link-with-icon"
          cta-type="icon-placement-right">

          <svg slot="icon"
               aria-hidden="true"
               width="20"
               height="20"
               viewBox="0 0 32 32">
          </svg>

          IBM Homepage
        </c4d-link-with-icon>
      </c4d-content-item>
    </div>

    <div class="cds--css-grid-column cds--sm:col-span-4">
      <c4d-content-item>
        Our products
      </c4d-content-item>
    </div>

    <div class="cds--css-grid-column cds--sm:col-span-4">
      <c4d-content-item>
        Careers
      </c4d-content-item>
    </div>

    <div class="cds--css-grid-column cds--sm:col-span-4">
      <c4d-content-item>
        Contact us
      </c4d-content-item>
    </div>

  </div>
</section>




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cs651:web systems

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