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<html><head><style> #myDIV { border: 1px solid black; width: 400px; height: 200px; background: url("w3css.gif") no-repeat;}</style></head><body><h1>Change background-repeat with JavaScript</h1><p>Click the "Try it" button to set the background-repeat property of the DIV element to "repeat-x":</p><button onclick="myFunction()">Try it</button><br><br><div id="myDIV"> <h1>Hello</h1></div><script>function myFunction() { document.getElementById("myDIV").style.backgroundRepeat = "repeat-x";}</script></body></html>