RandomSec/main/webapp/modules/core/styles/pure.css

/*

Copyright 2010, Google Inc.
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modification, are permitted provided that the following conditions are
met:

    * Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
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contributors may be used to endorse or promote products derived from
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,           
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY           
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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*/

.button, a.button { 
  background: -webkit-gradient(linear, left top, left bottom, from(#f9f9f9), to(#e3e3e3));
  background: -moz-linear-gradient(top,  #f9f9f9,  #e3e3e3);
  filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#f9f9f9', endColorstr='#e3e3e3');
  }

.button:active, a.button:active { 
  background: -webkit-gradient(linear, left top, left bottom, from(#e3e3e3), to(#f9f9f9));
  background: -moz-linear-gradient(top,  #e3e3e3,  #f9f9f9);
  filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#e3e3e3', endColorstr='#f9f9f9');
  }