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HTML

              
                <h1>Examples from blog post: <a href="http://balcagia.duckdns.org:8080/blog/2018/08/10/grid-percent/">Changes on CSS Grid Layout in percentages and indefinite height</a></h1>

<h3>Example of percentage dimensions in a containing block with definite sizes</h3>

<div style="width: 500px; height: 200px; border: dashed thick black;">
  <div style="width: 50%; height: 75%; background: magenta;"></div>
</div>

<h3>Example of percentage margins in a containing block with definite sizes</h3>

<div style="width: 500px; height: 200px; border: dashed thick black;">
  <div style="margin-left: 10%; margin-top: 10%; height: 150px; background: magenta;"></div>
</div>

<h3>Example of intrisic width without constraints</h3>

<div style="float: left; font: 50px/1 Ahem;
            border: dashed thick black; background: magenta; color: cyan;">
  XX XXXXX
</div>

<hr>

<h3>Example of intrisic width with different constraints</h3>

<div style="width: 300px; border: thick dashed red; display: flow-root;">
  <div style="float: left; font: 50px/1 Ahem;
              border: solid thick black; background: magenta; color: cyan;">
    XX XXXXX
  </div>
</div>

<hr>

<div style="width: 100px; border: thick dashed red; display: flow-root;">
  <div style="float: left; font: 50px/1 Ahem;
              border: solid thick black; background: magenta; color: cyan;">
    XX XXXXX
  </div>
</div>

<h3>Example of percentage dimensions in a containing block with indefinite sizes</h3>

<div style="float: left;
            border: solid thick black; background: magenta;">
  <div style="width: 50%; height: 50%; background: cyan;">Hello world!</div>
</div>

<hr>

<h3>Example of percentage margins in a containing block with indefinite sizes</h3>

<div style="float: left; font: 50px/1 Ahem;
            border: solid thick black; background: magenta;">
  <div style="margin-left: 50%; height: 100px;
              background: cyan; color: blue;">XXXXX</div>
</div>

<hr>

<h3>Example of percentage tracks in a grid container with indefinite sizes</h3>

<div style="display: inline-grid; border: solid thick;
            grid-template-columns: 75%; grid-template-rows: 50%;">
  <div style="background: magenta;">Testing</div>
</div>

<h3>Example of percentage gutters in a grid container with indefinite sizes</h3>

<div style="display: inline-grid; grid-gap: 10%; border: solid thick;
            grid-template-columns: 200px 200px; grid-template-rows: 100px 100px;">
  <div style="background: magenta;"></div>
  <div style="background: cyan;"></div>
  <div style="background: yellow;"></div>
  <div style="background: lime;"></div>
</div>

<h3>Example of overlapping rows in the new behavior</h3>

<div style="display: grid; grid-template-rows: 25% 75%; border: solid thick;">
  <div style="background: magenta;">First<br>two lines</div>
  <div style="background: cyan;">Second</div>
</div>

<h3>Example of overflowing rows in the new behavior</h3>

<div style="display: grid; grid-template-rows: 50%; border: solid thick;">
  <div style="background: magenta;">First</div>
  <div style="background: cyan; height: 200px;">Second</div>
  <div style="background: yellow; height: 100px;">Third</div>
</div>

              
            
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CSS

              
                hr {
  clear: both;
  border: none;
  height: 1em;
}
              
            
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JS

              
                
              
            
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999px

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