The HTML pattern [A-Za-z] specifies that the entered name must adhere to the required format, such as inputting "john"

<div class="title details">
  <label for="idtitle" class="label">Title</label>
  <input type="text" placeholder="Title" id="idtitle" pattern="[A-Za-z]" required>
</div>

Link to Firefox screenshot

Answer №1

Given that I have included the 'required' tag, it is essential to specify a minimum number of inputs in the pattern attribute. The appropriate pattern tag in this scenario would be as follows:

pattern="[A-Za-z]{1,20}"

Answer №2

Your current code has a small issue where you specified that the pattern should only consist of one character, which can be checked using the :valid pseudo-class:

::placeholder {
  font-style: italic;
  color: hsl(0 10% 10%);
}

input:invalid {
  background-color: hsl(0 100% 80% / 0.5);
}

input:valid {
  background-color: lime;
}
<div class="name deets">
  <label for="idname" class="label">Name</label>
  <input type="text" placeholder="Name" id="idname" pattern="[A-Za-z]" required>
</div>

To address this, simply allow for multiple characters as shown below (explanations provided in the <details> sections within the demo):

:root {
  --color-invalid: hsl(0 100% 80% / 0.5);
  --color-valid: hsl(120deg 61% 50% / 0.5);
}

::placeholder {
  font-style: italic;
  color: hsl(0 10% 10%);
}

/* More CSS styles here */

*Other inputs with patterns here*

For more information:

Additional resources:

Answer №3

If your current code is limiting the pattern to just one character, you can easily rectify this by using the :valid pseudo-class:

::placeholder {
  font-style: italic;
  color: hsl(0 10% 10%);
}

input:invalid {
  background-color: hsl(0 100% 80% / 0.5);
}

input:valid {
  background-color: lime;
}
<div class="name deets">
  <label for="idname" class="label">Name</label>
  <input type="text" placeholder="Name" id="idname" pattern="[A-Za-z]" required>
</div>

To allow multiple characters in the pattern, simply make the adjustments as shown below (details explained within the <details> elements in the demonstration):

:root {
  --color-invalid: hsl(0 100% 80% / 0.5);
  --color-valid: hsl(120deg 61% 50% / 0.5);
}

::placeholder {
  font-style: italic;
  color: hsl(0 10% 10%);
}

<!-- more CSS code follows -->
<!-- HTML input elements with different patterns provided -->

Check out the JS Fiddle demo here.

Further Reading:

Additional Resources:

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