<!DOCTYPE html>
<html>
<head>
    <style>
        .container {
            width: 200px;
            height: 200px;
            display: inline-block;
            background-image: linear-gradient(lime, lime);
        }
        .fixed-tile {
            background-size: 30px 30px;
        }
        .percentage-tile {
            background-size: 15% 15%;
        }
        .space {
            background-repeat: space;
        }
        .space-repeat {
            background-repeat: space repeat;
        }
    </style>
</head>
<body>
    <div>
        <div class="container fixed-tile space"></div>
        <div class="container fixed-tile space-repeat"></div>
    </div>
    <div>
        <div class="container percentage-tile space"></div>
        <div class="container percentage-tile space-repeat"></div>
    </div>
</body>
</html>