<svg width="500px" height="500px" viewBox="0 0 500 500"> 
    <rect x="0" y="0" width="100" height="100" fill="#feac5e"> 
        <animate attributeName="x" from="0" to="500" dur="2s" repeatCount="indefinite" /> 
    </rect> 
</svg>
body {
  background: #f2f2f2;
}

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