What's the blur event in Html?

In HTML, the blur event is triggered when an element loses focus. This means that the element is no longer selected or active, and the user is no longer interacting with it.

The blur event is commonly used in forms, where it can be used to validate input or trigger certain actions when the user moves away from a form field. For example, a form may have a blur

Here is an example of how the blur event can be used in an HTML form:

<form>
  <label for="email">Email:</label><br>
  <input type="email" id="email" name="email" onblur="validateEmail()"><br>
  <input type="submit" value="Submit">
</form>
 

In this example, the blur event is attached to the email input field using the onblur attribute. When the user moves away from the field, the validateEmail() function is called, which checks the input for errors. If any errors are found, the function can display an error message or highlight the input field to indicate the problem. This is just one example of how the blur

Set a default focus on login page

To set a default focus on a login page, you can use the autofocus attribute on the <input> element that you want to focus by default. Here is an example:

<form>
  <label for="username">Username:</label><br>
  <input type="text" id="username" name="username" autofocus><br>
  <label for="password">Password:</label><br>
  <input type="password" id="password" name="password"><br>
  <input type="submit" value="Login">
</form>

In this example, the autofocus attribute is added to the username input field. When the page loads, the username field will automatically be focused, and the user can begin typing their username without needing to click on the field. This can make the login process more efficient and user-friendly.

Note that the autofocus attribute should only be used on one <input> element per page, as only one element can be focused by default. Additionally, the autofocus attribute is not supported in all browsers, so it is a good idea to test your page in different browsers to make sure it works as expected.