form input error messages with only css

creating form input error messages using only css can enhance the user experience by providing immediate feedback without relying on javascript. below, i’ll provide a tutorial that demonstrates how to display error messages for form inputs using css.

tutorial: creating form input error messages with css

step 1: html structure

first, we will set up a simple html form that includes some input fields and a submit button. each input will have an associated error message that will be displayed conditionally based on whether the input is valid or not.

```html
!doctype html
html lang="en"
head
meta charset="utf-8"
meta name="viewport" content="width=device-width, initial-scale=1.0"
titleform input error messages/title
/head
body
form id="myform"
div class="form-group"
label for="username"username:/label
input type="text" id="username" required
span class="error-message"username is required./span
/div
div class="form-group"
label for="email"email:/label
input type="email" id="email" required
span class="error-message"valid email is required./span
/div
button type="submit"submit/button
/form
/body
/html
```

step 2: css styles

next, we'll add css styles to control the appearance of the form and the error messages. the error messages will be hidden by default and will be shown when the corresponding input field is invalid.

```css

body {
font-family: arial, sans-serif;
background-color: f4f4f4;
padding: 20px;
}

form {
background: white;
padding: 20px;
border-radius: 5px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.form-group {
margin-bottom: 15px;
}

label {
display: block;
margin-bottom: 5px;
}

input {
width: 100%;
padding: 10px;
border: 1px solid ccc;
border- ...

#CSS #FormValidation #numpy
form validation
input error messages
CSS styling
user feedback
error indication
form design
validation feedback
input highlight
error state
accessibility
responsive design
color contrast
tooltip messages
visual cues
user experience