Viewport Meta Tag not set
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Why is a viewport meta tag important?
The <meta name="viewport" /> in the <head> tells the browser how the page should be rendered.
The viewport communicates how the page should be scaled and sized to fit the screen of the device. For a responsive website it is necessary to set the <meta name="viewport" />.
How to fix issue “A Viewport Meta Tag must be set”?
Add a meta viewport tag to the <head> of your html page:
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
Note: you are supposed to have only one meta viewport tag!
What does this code do?
- width=device-width: this tells the browser that the width of the page should be set to the width of the device-width.
A phone that has a width of
360pxrenders a page with~360pxof width. - initial-scale=1.0: sets the initial zoom level. This allows the user to zoom in.
It is important to set a viewport that allows zooming to allow people with low vision to zoom in. Therefore we recommend to not add other scale parameters to the viewport meta tag.
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