focus in css w3schools code example
Example: focus js
<input type="text" id="myTextField" value="Text field.">
<p></p>
<button type="button" onclick="focusMethod()">Click me to focus on the text field!</button>
<input type="text" id="myTextField" value="Text field.">
<p></p>
<button type="button" onclick="focusMethod()">Click me to focus on the text field!</button>