How to create a responsive scrolling notification bar using HTML, CSS and jQuery

How to use HTML, CSS and jQuery to make a responsive scrolling notification bar

With the popularity of mobile devices and the increasing user requirements for website access experience, design A responsive scrolling notification bar is becoming more and more important. Responsive design ensures that the website displays properly on different devices and that users can easily view notification content. This article will introduce how to use HTML, CSS and jQuery to create a responsive scrolling notification bar, and provide specific code examples.

First, we need to create the HTML structure. In your HTML file, you can use an element with an id to hold the notification bar content. For example:

<div id="scrolling-news">
  <ul>
    <li>通知内容1</li>
    <li>通知内容2</li>
    <li>通知内容3</li>
    <li>通知内容4</li>
    <li>通知内容5</li>
  </ul>
</div>

Next, we need to use CSS to define the style and layout of the notification bar. You can create a basic style for the notification bar using the following style:

#scrolling-news {
  height: 40px;
  overflow: hidden;
}

#scrolling-news ul {
  position: relative;
  list-style: none;
  padding: 0;
  margin: 0;
  animation: scroll 10s linear infinite;
}

#scrolling-news li {
  display: inline-block;
}

@keyframes scroll {
  0% { transform: translateY(0); }
  100% { transform: translateY(-100%); }
}

In the above code, we set the height of the notification bar to 40px and set its overflow property to hidden to hide content beyond the scope. We use position:relative to set the positioning method of the ul element, and set its list style to none to remove the default list style. We also defined an animation named scroll to scroll up and down the notification content by using transform: translateY().

Now, we can use jQuery to add some interactive actions to the notification bar. Introduce the jQuery library into your HTML file, and then use the following code:

$(document).ready(function() {
  var scrollingNews = $('#scrolling-news');
  var newsItems = scrollingNews.find('li');
  var newsIndex = 0;

  function scrollNews() {
    scrollingNews.find('ul').animate({ marginTop: '-40px' }, 400, function() {
      $(this).css({ marginTop: '0' }).find('li:first').appendTo(this);
    });
  }

  setInterval(scrollNews, 3000);
});

In the above code, we first use the jQuery selector to get the elements of the notification bar and notification content. Then, we define a function called scrollNews to implement the scrolling effect of notification content. In this function, we use jQuery's animate() method to scroll up and down the notification content, and move the first notification item to the end of the list after the scrolling is completed. Finally, we use the setInterval() method to call the scrollNews function regularly to achieve automatic scrolling effect.

Now, when you open your web page, you should see a responsive scrolling notification bar. The notification content will scroll up and down at a certain speed, and when new notifications are added, they will automatically scroll into view.

By using HTML, CSS and jQuery, we can easily create a responsive scrolling notification bar. The above sample code is just a basic implementation method. You can modify the style and layout according to your own needs, and add more interactive functions. Hope this article is helpful to you!

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