<html>
<head>
<style>
input[type=text] {
width: 100%;
box-sizing: border-box;
border: 2px solid #ccc;
border-radius: 4px;
font-size: 16px;
background-color: white;
background-image: url('searchicon.png');
background-position: 10px 10px;
background-repeat: no-repeat;
padding: 12px 20px 12px 40px;
}
</style>
</head>
<body>
<h2>Input field with an icon inside</h2>
<form>
<input type="text" name="search" placeholder="Search..">
</form>
</body>
</html>