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HTML

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Insecure Resource

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CSS

About CSS Preprocessors

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

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

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JavaScript

About JavaScript Preprocessors

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

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Babel includes JSX processing.

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Packages

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Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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HTML 

              
                #shell
  #bg
   #bar
#real-loader
 div This is the "Penultimate Progress Loader of Infinite Frustration" 
 div Visit the 
   a(href="https://codepen.io/raurir/pen/NGwOzz" target="_blank") "The Ultimate Progress Loader of Infinite Frustration"
!

CSS 

              
                #real-loader
  position absolute
  bottom 10px
  width 100%
  line-height 20px
  text-align center
  color rgba(255,255,255,0.5)
  a, a:visited
    color rgba(255,255,255,0.8)
    
makeTransition()
  -webkit-transition arguments
  -moz-transition arguments
  -o-transition arguments
  transition arguments

html
  height 100%
  font-family sans-serif

col1 = #506590
col2 = #323368

body
  height 100%
  margin 0
  padding 0
  background-repeat no-repeat
  background-attachment fixed
  background-image -moz-radial-gradient(center, ellipse cover, col1 0%, col2 100%)
  background-image -webkit-radial-gradient(center, ellipse cover, col1 0%, col2 100%)
  background-image -o-radial-gradient(center, ellipse cover, col1 0%, col2 100%)
  background-image -ms-radial-gradient(center, ellipse cover, col1 0%, col2 100%)
  background-image radial-gradient(center, ellipse cover, col1 0%, col2 100%)

#shell
  position absolute
  top 50%
  left 50%
  
  #bg
    makeTransition all 0.15s ease-in-out
    width 100px
    margin-left -50px
    height 10px
    background rgba(0,0,0,0.5)
    position relative
    
    #bar
      makeTransition all 0.15s ease-in-out
      position absolute
      top 2px
      left 2px
      background rgba(255,255,255,0.5)
      height 6px
      width 0px
      line-height 196px
      text-align center
      font-size 30px

      color rgba(0,0,0,0.5)
!

JS 

              
                var d = 'horizontal', c = 0, s = 100, m = 200;
setInterval(function() {
  function dim() {
    c += Math.random() * 5;
    if (s - c < Math.random() * 5) s += Math.random() * 15;
    if (s > m) s = m;
    if (c > s) c = s;
    
    var barSize = (c - 4) + "px", bgSize = s + "px", bgMargin = (s * -0.5) + "px";
    if (d == "horizontal") {
      bar.style.width = barSize;
      bg.style.width = bgSize;
      bg.style.marginLeft = bgMargin;
    } else if (d == "vertical") {
      bar.style.height = barSize;
      bg.style.height = bgSize;
      bg.style.marginTop = bgMargin;
    }
    return c == s && c == m;
  }
  
  if (d == "horizontal" && dim()) {
    c = 0; s = 100; d = "vertical";
  } else if (d == "vertical" && dim()) {
    c = 6; s = 100; d = "text";
  } else if (d =="text") {
     dim();
     bar.innerHTML = (Math.round(c / m * 99) + Math.round(Math.random() * 9) / 10) + "%";
  }
  
}, 200);
!
999px

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