Mobile safari - on screen keyboard hiding some elements

In mobile Safari (and other mobile browsers), the on-screen keyboard can sometimes cause layout issues, such as hiding some elements, especially when those elements are positioned at the bottom of the page. This behavior is particularly common in single-page applications (SPAs) or web apps where the content may not adjust automatically when the on-screen keyboard is activated.

To address this issue and ensure that elements are not hidden by the on-screen keyboard, you can use the following approaches:

1. Viewport Units: Use viewport units (vh, vw, vmin, or vmax) to size and position elements instead of fixed values. Viewport units are relative to the size of the viewport, so they automatically adjust when the on-screen keyboard appears.

2. Scrolling Behavior: Handle the keyboard appearing event and adjust the scrolling behavior to ensure the focused input or element is visible above the keyboard. You can use JavaScript or CSS to achieve this.

3. Avoid Fixed Positioning: Avoid using fixed positioning for elements that might be affected by the on-screen keyboard. Fixed positioning can cause elements to overlay the keyboard or get hidden behind it.

4. Input Element Focus: Handle the focus event on input elements to scroll the page or adjust the layout, so the focused element is not hidden by the keyboard.

5. CSS Sticky Position: Consider using the CSS position: sticky; property for certain elements that should remain visible at the bottom of the viewport even when the on-screen keyboard is active.

6. Testing on Different Devices: Test your web app on different devices with various screen sizes and aspect ratios to ensure the layout works well under different scenarios.

Here's a simple example using CSS to address this issue:

cssCopy code
/* Example CSS to adjust the layout when the on-screen keyboard appears */
/* Assume you have an input with class "my-input" */
/* Add this CSS to ensure the input is visible above the keyboard */

.my-input {
  /* Other styles for the input */
  margin-bottom: 50px; /* Add a margin at the bottom to create space for the keyboard */
}

Please note that the specific solution may vary based on your web app's structure and requirements. Be sure to test your implementation on different devices and browsers to ensure the best user experience. Additionally, consider using JavaScript or libraries that handle the on-screen keyboard behavior automatically to simplify the implementation.