Many people use a To-do list to organise their work (or even their leisure). A To-do list allows you to easily keep track of completed tasks and add new ones. How can you mark up such a change history using HTML?
The tags <del> (which is short for “delete”) and <ins> (which is short for “insert”) are intended to be used to describe such changes.
The <del> tag is used to highlight text that has been deleted in the new version of the document. This text is displayed as being crossed-out in the browser.
The <ins> tag is used to highlight text that has been added in the new version of the document. This text is displayed as being underlined in the browser.
Both tags have a datetime attribute that lets you specify the date and time when this or that edit was made.
The to-do list is the simplest example of how these tags are used. When an item on the list has been completed, it is marked using the <del> tag, but if a new item has been added to the list, then it is added to the list and marked with the <ins> tag.
<ul>
<li>Clean the dishwasher</li>
<li><del datetime="2009-10-11T01:25-07:00">Take a walk</del></li>
<li><del datetime="2009-10-10T23:38-07:00">Take a nap</del></li>
<li><ins>Buy a printer</ins></li>
</ul>
The datetime attribute is not intended for human consumption, but rather for computers. Therefore, the date and time are written there in a standardized format. When you use such markup, it is easier for programs to parse documents and analyze when certain changes have occurred.
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course-tab--active js--theory-tab__theory"><span class="course-tab__icon"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-theory"></use></svg></span><span class="course-tab__title">Theory</span></li><li class="course-tabs__item course-tabs__item--internal course-tab course-tab--centered js--theory-tab__comments"><span class="course-tab__icon"><svg aria-hidden="true" style="width: 16px; height: 16px; fill: #2e2c9c;"><use xlink:href="/img/sprites/up.svg#comment"></use></svg></span><span class="course-tab__title">Comments</span></li></ul><section class="course-theory__content"><div class="js--theory-pane__theory course-theory__content-inner"><h1 class="course-theory__content-heading">The del and ins tags, which are used to highlight changes</h1><div class="course-theory__content-text"><p>Many people use a To-do list to organise their work (or even their leisure). A To-do list allows you to easily keep track of completed tasks and add new ones. How can you mark up such a change history using HTML?</p><p>The tags <code><del></code> (which is short for “delete”) and <code><ins></code> (which is short for “insert”) are intended to be used to describe such changes.</p><p>The <code><del></code> tag is used to highlight text that has been deleted in the new version of the document. This text is displayed as being crossed-out in the browser.</p><p>The <code><ins></code> tag is used to highlight text that has been added in the new version of the document. This text is displayed as being underlined in the browser.</p><p>Both tags have a <code>datetime</code> attribute that lets you specify the date and time when this or that edit was made.</p><p>The to-do list is the simplest example of how these tags are used. When an item on the list has been completed, it is marked using the <code><del></code> tag, but if a new item has been added to the list, then it is added to the list and marked with the <code><ins></code> tag.</p><pre><code><ul>
<li>Clean the dishwasher</li>
<li><del datetime="2009-10-11T01:25-07:00">Take a walk</del></li>
<li><del datetime="2009-10-10T23:38-07:00">Take a nap</del></li>
<li><ins>Buy a printer</ins></li>
</ul></code></pre><p class="info info--frame-heading info--frame-heading--boremode info--gray">The <code>datetime</code> attribute is not intended for human consumption, but rather for computers. Therefore, the date and time are written there in a standardized format. When you use such markup, it is easier for programs to parse documents and analyze when certain changes have occurred.</p></div></div><div class="js--theory-pane__comments hidden course-theory__content-inner"><div class="course-theory__content-text"><h2 class="course-theory__content-heading">Comments</h2><div id="disqus_thread"></div><script>
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<h1>Day Eleven. Everything should be taken in moderation.</h1>
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