html tutorial - How to remove outline around text input boxes in chrome using CSS - html5 - html code - html form
Answer: Use CSS outline property
In Google Chrome browser form controls like <input>, <textarea> and <select> highlighted with blue outline around them on focus. This is the default behavior of chrome, however if you don't like it you can easily remove this by setting their outline property to none, like this:
Example
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Remove Input Highlighting in Chrome with CSS</title>
<style type="text/css">
input:focus, textarea:focus, select:focus{
outline: none;
}
</style>
</head>
<body>
<form>
<input type="text">
<hr>
<textarea></textarea>
<hr>
<select>
<option>Select</option>
</select>
</form>
</body>
</html>