searchbox/searchbox03.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Search Box 03</title>
  <style>
    body {
      margin: 0;
      padding: 0;
      background: #2d3436;
    }
    .container {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
    }
    input {
      box-sizing: border-box;
    }
    input[type="text"] {
      border: none;
      outline: none;
      width: 340px;
      height: 40px;
      font-size: 22px;
      border-radius: 20px;
      padding: 5px 100px 5px 16px;
    }
    input[type="submit"] {
      position: absolute;
      top: 0px;
      right: 0px;
      height: 40px;
      width: 86px;
      border: none;
      outline: none;
      color: #fff;
      font-size: 18px;
      padding: 0 8px;
      letter-spacing: 2px;
      background: #fdcb6e;
      border-radius: 0 20px 20px 0;
      transform-origin: right;
      cursor: pointer;
      transition: .5s;
    }
    input[type="submit"]:hover {
      background: #daa950;
      text-shadow: 0 0 4px rgb(238, 247, 113);
    }
    input[type="submit"]:active {
      background: #6c5ce7;
    }
  </style>
</head>
<body>
  <div class="container">
    <form action="#">
      <input type="text" placeholder="Search">
      <input class="btn" type="submit" value="Submit"></input>
    </form>
  </div>
</body>
</html>