How to Seamlessly Integrate a Button within an Input Field Using CSS?

How to Integrate a Button Within an Input Field Using CSS

Question:

In a user interface, how can we visually incorporate a button within an input field, allowing users to interact with it seamlessly, maintain text clarity despite field length, ensure proper focus operation, and maintain accessibility for screen readers?

Answer:

To achieve this effect, we can utilize a flexbox layout and place the border around the containing form. By implementing a flexbox layout, the input and button can be arranged side by side, with the input stretching to occupy the available space. Subsequently, the input's border can be removed to render it invisible, creating the illusion that the border encloses both the button and input.

Implementation:

The following snippet showcases the code implementation:

<code class="css">form {
  display: flex;
  flex-direction: row;
  border: 1px solid grey;
  padding: 1px;
}

input {
  flex-grow: 2;
  border: none;
}

input:focus {
  outline: none;
}

form:focus-within {
  outline: 1px solid blue;
}

button {
  border: 1px solid blue;
  background: blue;
  color: white;
}</code>

<code class="html"><form>
  <input />
  <button>Go</button>
</form></code>

Benefits of This Approach:

• Visual Integration: The button is visually positioned within the input field.
• Responsive Design: Text remains visible regardless of field length.
• Correct Focus Indication: Focus is maintained within the parent form.
• Accessibility: Screen readers can accurately interpret the form structure.
• CSS-Stylable: The entire component can be customized via CSS.
• Scalable: It can adapt to different screen sizes and available spaces.

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