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<html><head><style>.grid-container { display: grid; grid: auto / auto auto auto auto; grid-gap: 10px !important; background-color: #2196F3; padding: 10px;}.grid-container > div { background-color: rgba(255, 255, 255, 0.8); text-align: center; padding: 20px 0; font-size: 30px;}</style></head><body><h1>Change the grid Property with JavaScript</h1><p>Click the button to change the grid layout from a four columns layout to a two columns layout, where the first row is 250px high:</p><p><button onclick="myFunction()">Change layout</button></p><div class="grid-container" id="myDIV"> <div class="item1">1</div> <div class="item2">2</div> <div class="item3">3</div> <div class="item4">4</div> <div class="item5">5</div> <div class="item6">6</div> <div class="item7">7</div> <div class="item8">8</div></div><script>function myFunction() { document.getElementById("myDIV").style.grid = "250px / auto auto";}</script><p>Note: The grid-gap property is set to !important, otherwise the javaScript will override it when setting the grid property.</p></body>