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HomeWeb Front-endHTML TutorialThe importance and practical experience of responsive layout in mobile devices
The importance and practical experience of responsive layout in mobile devicesJan 27, 2024 am 10:45 AM
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The importance and practical experience of responsive layout in mobile devices

The importance and practical experience of responsive layout on mobile devices

With the popularity of mobile devices and the rapid development of the Internet, our web pages are no longer only It is accessed on a desktop computer but needs to be viewed on mobile devices of various sizes. This puts forward higher requirements for web design, that is, it must be able to adapt to changes in resolutions of different devices to ensure that users can have a good browsing experience on different devices. Responsive layout is a solution that allows web pages to automatically adapt and rearrange according to the width and height of the device, so that the web page can be displayed perfectly on a variety of different devices.

The importance of responsive layout is to improve user experience. When a user accesses a webpage on a mobile device such as a mobile phone or tablet, if the webpage does not have a responsive layout, the content in the page will be scaled or truncated, causing the user to frequently adjust the page to browse. And if the web page has a responsive layout, the page will automatically adjust the layout according to the size of the device screen, so that users can get a comfortable user experience on any device. This can not only improve user satisfaction, but also improve the conversion rate and retention rate of the website.

Below I will introduce some practical experience of responsive layout and attach some specific code examples.

  1. Using CSS media queries

CSS media queries are the basis for implementing responsive layout. Through media queries, we can set different styles according to the resolution and characteristics of the device. For example, on mobile devices, we can use media queries to set the width, font size, line height and other styles of the page to adapt to the screen size of the device. Here is a simple media query example:

@media screen and (max-width: 768px) {
  /* 在宽度小于等于768px的设备上应用以下样式 */
  body {
    font-size: 16px;
    width: 100%;
  }
}
  1. Using fluid layout

Fluid layout is a percentage-based layout method that can be adjusted according to the screen of the device. Size automatically adjusts the width of the element. This allows the page to display an appropriate layout on devices of different sizes. The following is an example of fluid layout:

.container {
  width: 100%;
  height: auto;
  display: flex;
  flex-wrap: wrap;
}

.item {
  width: 50%;
  height: auto;
  padding: 20px;
}

@media screen and (max-width: 768px) {
  .item {
    width: 100%;
  }
}

In the above example, .container uses fluid layout, and when the device width is less than or equal to 768px, .item# The width of ## will become 100%.

    Using media resources
On mobile devices, due to bandwidth and network conditions, loading a large number of images and videos may cause long loading times. In order to improve the loading speed of web pages, we can use media resource providers, such as using compressed and cropped images to replace original images, or using video alternatives to reduce the load of the page.

For example, you can use the following code to load different images on different devices:

<img class="small-image lazy"  src="/static/imghwm/default1.png"  data-src="small.jpg"  alt="Small Image">
<img class="medium-image lazy"  src="/static/imghwm/default1.png"  data-src="medium.jpg"  alt="Medium Image">
<img class="large-image lazy"  src="/static/imghwm/default1.png"  data-src="large.jpg"  alt="Large Image">

<style>
.small-image {
  display: none;
}

@media screen and (max-width: 480px) {
  .small-image {
    display: block;
  }
  .medium-image, .large-image {
    display: none;
  }
}

@media screen and (min-width: 481px) and (max-width: 768px) {
  .medium-image {
    display: block;
  }
  .small-image, .large-image {
    display: none;
  }
}

@media screen and (min-width: 769px) {
  .large-image {
    display: block;
  }
  .small-image, .medium-image {
    display: none;
  }
}
</style>

The above code will select appropriate images for display based on the width of the device, thereby reducing unnecessary loading and bandwidth consumption.

Responsive layout is an important part of design on mobile devices. It can improve user experience and allow web pages to adapt and display on different devices. Through the reasonable use of CSS media queries, streaming layout and media resources, we can achieve an excellent responsive layout. We hope that the above practical experience and specific code examples can provide some reference and help for developers to implement responsive layout on mobile devices.

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