HTML, CSS
The objective of this technique is to ensure text-based form controls resize when text size is changed in the user agent. This will allow users to enter text and read what they have entered in input boxes because the text is displayed at the size required by the user.
Text-based form controls include input boxes (text and textarea) as well as buttons.
A Contact Us form has some introductory information and then form controls for users to enter their first name, last name, telephone number and email address. All of the text and form controls have been implemented in a scalable way.
<h1>Contact Us</h1>
<p>Please provide us with your details and we will contact you as soon as we can.
Note that all of the form fields are required.</p>
<div>
<label for="fname">First Name</label>
<input autocomplete="given-name" id="fname" name="fname" type="text">
</div>
<div>
<label for="lname">Last Name</label>
<input autocomplete="family-name" id="lname" name="lname" type="text">
</div>
<div>
<label for="phone">Telephone</label>
<input autocomplete="tel" id="phone" name="phone" type="text">
</div>
<div>
<label for="email">Email</label>
<input autocomplete="email" id="email" name="email" type="text">
</div>
<input id="submit" name="submit" type="submit" value="Submit">h1 { font-size: 2em; }
p, label { font-size: 1em; }
label { display:block; }
input { font: inherit; }
div { margin-bottom: 1rem; }Working example of this code: Example of resizing input with CSS.