How to Prevent the Address Bar from Hiding in Mobile Browsers When Using Absolute Positioning?

Addressing the Persistent Address Bar in Mobile Browsers

It's not uncommon for websites with unconventional layouts to face issues with the address bar auto-hiding mechanism in mobile browsers. This can disrupt functionality and create unintended user experiences.

Problem:

Websites that rely heavily on absolute positioning with JavaScript for their horizontal layout often encounter the issue of unintentional scrolling. Despite the elements being within the window's height, the address bar remains hidden, triggering a series of unwanted events:

• Resize event when it shouldn't
• Incorrect scrolling behavior in vertically scrollable content

Solution:

To prevent this auto-hiding behavior, a combination of CSS properties can be utilized:

CSS Code:

<code class="css">html {
  background-color: red;
  overflow: hidden;
  width: 100%;
}

body {
  height: 100%;
  position: fixed;
  /* prevent overscroll bounce*/
  background-color: lightgreen;
  overflow-y: scroll;
  -webkit-overflow-scrolling: touch;
  /* iOS velocity scrolling */
}</code>

Explanation:

• html { overflow: hidden; }: Prevents scrolling outside the viewport.
• body { height: 100%; }: Ensures that the body takes up the entire height of the viewport.
• body { position: fixed; }: Fixes the body to the viewport, preventing it from scrolling.
• body { overflow-y: scroll; }: Enables vertical scrolling within the body.
• body { -webkit-overflow-scrolling: touch; }: Optimizes scrolling for iOS touch devices.

This solution effectively locks the address bar in its expanded state, allowing users to scroll within the desired content areas without triggering unwanted events or disrupting the visual layout.

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