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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <div class="example" data-property="background-gradient">
<p>Linear backgrounds</p>
      <div id="b1"></div>
      <div id="b2"></div>
      <div id="b3"></div>
      <div id="b4"></div>
      <div id="b5"></div>
      <div id="b6"></div>
      <div id="b7"></div>
      <div id="b8"></div>
      <div id="b9"></div>
      <div id="b10"></div>
    </div>
<p> By <a href="http://crazyrohila.com" title="sanjay rohila | crazyrohila">me</a></p>
!

CSS 

              
                /**
 * linear-gradient backgrounds.
 */

p {
font-weight:bold;
font-style:italic;
color:#008080;
}

.example > div {
width: 200px;
height: 200px;
float: left;
border-radius: 50%;
margin: 10px;
background-image: linear-gradient(left, red, green);
background-image: -moz-linear-gradient(left center , green, red);
background-size: 20px 20px;
}
#b1 {
background-image: -webkit-linear-gradient(45deg, red 50%, transparent 50%),
	-webkit-linear-gradient(135deg, transparent 50%, green 50%);
background-image: -moz-linear-gradient(45deg, red 50%, transparent 50%),
	-moz-linear-gradient(135deg, transparent 50%, green 50%);
background-image: linear-gradient(45deg, red 50%, transparent 50%),
	linear-gradient(135deg, transparent 50%, green 50%);
}
#b2 {
background-image: -webkit-linear-gradient(45deg, green, transparent 11px, #000);
background-image: -moz-linear-gradient(45deg, green, transparent 11px, #000);
background-image: -o-linear-gradient(45deg, green, transparent 11px, #000);
background-image: linear-gradient(45deg, green, transparent 11px, #000);
background-size: 10px 10px;
}
#b3 {
background-image: -webkit-linear-gradient(-45deg, white 50%, #008080 50%);
background-image: -moz-linear-gradient(-45deg, white 50%, #008080 50%);
background-image: linear-gradient(-45deg, white 50%, #008080 50%);
}
#b4 {
background-image: -webkit-linear-gradient(50deg, white, #008080);
background-image: -moz-linear-gradient(50deg, white, #008080);
background-image: linear-gradient(50deg, white, #008080);
}
#b5 {
background-image: -webkit-linear-gradient(30deg, #0000e0, #e00000);
background-image: -moz-linear-gradient(30deg, #0000e0, #e00000);
background-image: -o-linear-gradient(30deg, #0000e0, #e00000);
background-image: linear-gradient(30deg, #0000e0, #e00000);
background-size: 30px 30px;
}
#b6 {
background-color: teal;
background-image: -webkit-linear-gradient(30deg, #008080, transparent 5px, #fff);
background-image: -moz-linear-gradient(30deg, #008080, transparent 5px, #fff);
background-image: linear-gradient(30deg, #008080, transparent 5px, #fff);
background-size: 5px 5px;
}
#b7 {
background-color: teal;
background-image: -webkit-linear-gradient(30deg, transparent, #008080, transparent 30px, #fff);
background-image: -moz-linear-gradient(30deg, transparent, #008080, transparent 30px, #fff);
background-image: linear-gradient(30deg, transparent, #008080, transparent 30px, #fff);
background-size: 30px 30px;
}
#b8 {
background-color: #fff;
background-image: -webkit-linear-gradient(60deg, transparent, #666, transparent 50px, white);
  background-image: -moz-linear-gradient(60deg, transparent, #666, transparent 50px, white);
  background-image: linear-gradient(60deg, transparent, #666, transparent 50px, white);
background-size: 5px 5px;
}

#b9 {
background-image: -webkit-linear-gradient(60deg, red 50%, green 50%);
background-image: -moz-linear-gradient(60deg, red 50%, green 50%);
background-image: linear-gradient(60deg, red 50%, green 50%);
}
#b10 {
background-color: teal;
background-image: -webkit-linear-gradient(60deg, transparent, #008080, transparent 10px, #fff);
background-image: -moz-linear-gradient(60deg, transparent, #008080, transparent 10px, #fff);
background-image: linear-gradient(60deg, transparent, #008080, transparent 10px, #fff);
background-size: 5px 5px;
}
!

JS 

              
                /**
 * I have tried some background patterns with linear-gradient (ugly one).
 * Most popular and beautiful gallery is avaialable on http://lea.verou.me/css3patterns/.
 */
!
999px

Console