Does not have a <meta name="viewport"> tag with width or initial-scale
"Does not have a <meta name="viewport"> tag with width or initial-scale" means that your webpage is missing a viewport meta tag, which can negatively impact the user experience on mobile devices.
How to fix it
The solution is to add a viewport meta tag with width or initial-scale. Here's how:
Step 1: Identify Missing Viewport Meta Tag
First, you need to identify if your webpage is missing a viewport meta tag. You can use Chrome DevTools for this. Open DevTools, go to the 'Elements' tab, and look for a <meta name="viewport"> tag in the <head> section of your HTML.
Step 2: Add Viewport Meta Tag
If your webpage is missing a viewport meta tag, you need to add one. This tag should include width=device-width, initial-scale=1 to ensure your webpage scales correctly on all devices.
<!-- Before -->
<head>
<title>My Webpage</title>
</head>
<!-- After -->
<head>
<title>My Webpage</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
In this example, we've added a viewport meta tag to the <head> section of the HTML.
Step 3: Test Your Changes
For an even better solution, consider testing your changes to make sure they don't break any functionality. This can help ensure that your site still works as expected with the added viewport meta tag.