ericrasch
6/21/2012 - 4:23 PM

A web page created at CodePen.io

A web page created at CodePen.io

style.less
content_copyfile_download
/* =VARIABLES
   ---------------------------------------------------------------------------------------------------- */
@size-mobile:  481; /* We're assuming px sizes are to be used. */
@size-tablet:  768;
@size-desktop: 1030;
@size-large:   1240;


/* What all browsers will see since we're taking a '320 and up' approach to media queries.
   Source: http://nicolasgallagher.com/mobile-first-css-sass-and-ie/
   ---------------------------------------------------------------------------------------------------- */
#debug {
    font-size: 5em;
    opacity: 0.6;
    position: fixed;
    right: 20px;
    top: 0;
}

#debug:after {
    content: '<@{size-mobile}px';
}


/* =MEDIA QUERIES
   ---------------------------------------------------------------------------------------------------- */
@media (min-width: ~"@{size-mobile}px") {
    #debug:after {
        content: '@{size-mobile}-@{size-tablet}px';
    }
}

@media (min-width: ~"@{size-tablet}px") {
    #debug:after {
        content: '@{size-tablet}-@{size-desktop}px';
    }
}

@media (min-width: ~"@{size-desktop}px") {
    #debug:after {
        content: '@{size-desktop}-@{size-large}px';
    }
}

@media (min-width: ~"@{size-large}px") {
    #debug:after {
        content: '>@{size-large}px';
    }
}
markup.html
content_copyfile_download
<div id="debug"></div>
index.html
content_copyfile_download


<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">

  <title>Responsive Breakpoint Hinting &middot; CodePen</title>

  <link rel="stylesheet" href="http://codepen.io/stylesheets/css/normalize.css">

  <style>
/* =VARIABLES
   ---------------------------------------------------------------------------------------------------- */
/* We're assuming px sizes are to be used. */
/* What all browsers will see since we're taking a '320 and up' approach to media queries.
   Source: http://nicolasgallagher.com/mobile-first-css-sass-and-ie/
   ---------------------------------------------------------------------------------------------------- */
#debug {
  font-size: 5em;
  opacity: 0.6;
  position: fixed;
  right: 20px;
  top: 0;
}
#debug:after {
  content: '<481px';
}
/* =MEDIA QUERIES
   ---------------------------------------------------------------------------------------------------- */
@media (min-width: 481px) {
  #debug:after {
    content: '481-768px';
  }
}
@media (min-width: 768px) {
  #debug:after {
    content: '768-1030px';
  }
}
@media (min-width: 1030px) {
  #debug:after {
    content: '1030-1240px';
  }
}
@media (min-width: 1240px) {
  #debug:after {
    content: '>1240px';
  }
}
  </style>

  <style>
    #codepen-footer, #codepen-footer * {
      -webkit-box-sizing: border-box !important;
      -moz-box-sizing: border-box !important;
      box-sizing: border-box !important;
    }
    #codepen-footer {
      display: block !important;
      position: fixed !important;
      bottom: 0 !important;
      left: 0 !important;
      width: 100% !important;
      padding: 0 10px !important;
      margin: 0 !important;
      height: 30px !important;
      line-height: 30px !important;
      font-size: 12px !important;
      color: #eeeeee !important;
      background-color: #505050 !important;
      text-align: left !important;
      background: -webkit-linear-gradient(top, #505050, #383838) !important;
      background: -moz-linear-gradient(top, #505050, #383838) !important;
      background: -ms-linear-gradient(top, #505050, #383838) !important;
      background: -o-linear-gradient(top, #505050, #383838) !important;
      border-top: 1px solid black !important;
      border-bottom: 1px solid black !important;
      border-radius: 0 !important;
      box-shadow: inset 0 1px 0 #6e6e6e, 0 2px 2px rgba(0, 0, 0, 0.4) !important;
      z-index: 300 !important; 
      font-family: "Lucida Grande", "Lucida Sans Unicode", Tahoma, sans-serif !important;
      letter-spacing: 0 !important;
      word-spacing: 0 !important;
    }
    #codepen-footer a {
      color: #a7a7a7 !important; 
      text-decoration: none !important;
    }
    #codepen-footer a:hover {
      color: white !important; 
    }
  </style>

  <script src="http://codepen.io/javascripts/libs/prefixfree.min.js"></script>

</head>
<body>

  <div id="debug"></div>

  <script src="http://code.jquery.com/jquery-latest.js"></script>
  <script src="http://codepen.io/javascripts/libs/modernizr.js"></script>

  <div id="codepen-footer">
    <a style="color: #f73535 !important;" href="https://codepen.wufoo.com/forms/m7x3r3/def/field14=" onclick="window.open(this.href,  null, 'height=517, width=680, toolbar=0, location=0, status=1, scrollbars=1, resizable=1'); return false">Report Abuse</a>

    &nbsp;

    <a href="/ericrasch/pen/responsive-breakpoint-hinting/1">Edit this Pen</a>
  </div>

</body>

</html>