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- <head>
- <style>
- div {
- display: inline-block;
- width: 150px;
- padding: 2px;
- margin: 5px;
- }
- <div style='background:rgb(0, 0, 0)'>rgb(0, 0, 0)</div> <div style='background:rgb(0, 0, 51)'>rgb(0, 0, 51)</div
- <div style='background:rgb(0, 0, 255)'>rgb(0, 0, 255)</div><div style='background:rgb(0, 51, 0)'>rgb(0, 51, 0)</div>
- <div style='background:rgb(0, 51, 51)'>rgb(0, 51, 51)</div><div style='background:rgb(0, 51, 102)'>rgb(0, 51, 102)</div>
- <div style='background:rgb(0, 255, 255)'>rgb(0, 255, 255)</div><div style='background:rgb(51, 0, 0)'>rgb(51, 0, 0)</div>
- <div style='background:rgb(255, 255, 255)'>rgb(255, 255, 255)</div>
- </style>
- </head>
- <body><?php
- for ($red = 0; $red <= 255; $red += 51)
- for ($green = 0; $green <= 255; $green += 51)
- for ($blue = 0; $blue <= 255; $blue += 51) {
- $color = "rgb($red, $green, $blue)";
- echo "<div style='background:$color'>
- $color</div>\n";
- }
- ?>
- </body>
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