QR Code company page attempt

Replace <div class="card"> with the main tag to fix the accessibility issue. click here for more on web-accessibility and semantic html

There is no need for user-scalable=no in the meta tag to make your page responsive , use <meta name="viewport" content="width=device-width, initial-scale=1"> instead <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">

There is no need to give the body a width of 100%, to center .card on on the page using flexbox add min-height: 100vh to the body.

To center .card on the page using flexbox:
body{
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
}

Replace the height in .card with a padding value for all the sides, this will prevent the content from overflowing on smaller screens and its a responsive replacement. padding: 15px and give the img a max-width of 100% instead of a width.

Give h1 and p the same font-size of 15px,the same margin-left and margin-right values. Give p a margin bottom and top value.

Use relative units like rem or em as unit for the padding, margin, width values and preferably rem for the font-size values, instead of using px which is an absolute unit. For more on CSS units Click here

Hope am helpful.

Well done for completing this challenge. HAPPY CODING