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CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

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Babel is required to process package imports. If you need a different preprocessor remove all packages first.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

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                <div class="container">
  <div class="itm itm1">1</div>
  <div class="itm itm2">2</div>
  <div class="itm itm3">3</div>
  <div class="itm itm4">4</div>
  <div class="itm itm5">5</div>
  <div class="itm itm6">6</div>
  <div class="itm itm7">7</div>
  <div class="itm itm8">8</div>
  <div class="itm itm9">9</div>
  <div class="itm itm10">10</div>
  <div class="itm itm11">11</div>
  <div class="itm itm12">12</div>
  <div class="itm itm13">13</div>
  <div class="itm itm14">14</div>
  <div class="itm itm15">15</div>
  <div class="itm itm16">16</div>
  <div class="itm itm17">17</div>
  <div class="itm itm18">18</div>
  <div class="itm itm19">19</div>
  <div class="itm itm20">20</div>
  <div class="itm itm21">21</div>
  <div class="itm itm22">22</div>
  <div class="itm itm23">23</div>
  <div class="itm itm24">24</div>
  <div class="itm itm25">25</div>
  <div class="itm itm26">26</div>
  <div class="itm itm27">27</div>
  <div class="itm itm28">28</div>
  <div class="itm itm29">29</div>
  <div class="itm itm30">30</div>
  <div class="itm itm31">31</div>
  <div class="itm itm32">32</div>
  <div class="itm itm33">33</div>
  <div class="itm itm34">34</div>
  <div class="itm itm35">35</div>
  <div class="itm itm36">36</div>
  <div class="itm itm37">37</div>
  <div class="itm itm38">38</div>
  <div class="itm itm39">39</div>
  <div class="itm itm40">40</div>


                :root {
  --yellow: #ffc600;

.container {
  display: grid;
  grid-gap: 20px;
  grid-template-columns: repeat(5, 100px);
  grid-template-rows: repeat(5, 100px);
  place-items: stretch stretch;
  justify-content: center;
  align-content: center;

.itm {
  background: tomato;

.itm4 {
  background: greenyellow;
  align-self: center;
  justify-self: center;

.item {
  display: grid;
  justify-content: center;
  align-items: center;
  border: 5px solid rgba(0, 0, 0, 0.03);
  border-radius: 3px;
  font-size: 35px;
  background-color: var(--yellow);

.item p {
  margin: 0 0 5px 0;