<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>image 5px spacing</title>
</head>
<body>
  <div class="img-container">
    <img src="https://cdn-images-1.medium.com/max/1600/0*MU3iBxNwssZWt6Tj" alt="">
  </div>
</body>
</html>
    html,body{
      margin: 0; 
      padding: 0;
    }

    .img-container{
      background-color: lightblue;
    }

    img{
      width: 100%;
      /* Key Style */
      display: block;
    }

External CSS

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External JavaScript

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