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   1  /* --------------------------------------------------------------
   2      $Utilities
   3  -------------------------------------------------------------- */
   4  
   5  .sr-only {
   6      position: absolute;
   7      width: 1px;
   8      height: 1px;
   9      margin: -1px;
  10      padding: 0;
  11      overflow: hidden;
  12      clip: rect(0, 0, 0, 0);
  13      border: 0;
  14  }
  15  
  16  .sr-only-focusable:active,
  17  .sr-only-focusable:focus {
  18    position: static;
  19    width: auto;
  20    height: auto;
  21    margin: 0;
  22    overflow: visible;
  23    clip: auto;
  24  }
  25  
  26  .clearfix:before,
  27  .clearfix:after,
  28  .container:before,
  29  .container:after,
  30  .container-fluid:before,
  31  .container-fluid:after,
  32  .row:before,
  33  .row:after {
  34      content: " ";
  35      display: table;
  36  }
  37  .clearfix:after,
  38  .container:after,
  39  .container-fluid:after,
  40  .row:after { clear: both }
  41  
  42  .center-block {
  43      display: block;
  44      margin-left: auto;
  45      margin-right: auto;
  46  }
  47  
  48  .pull-right { float: right !important }
  49  .pull-left { float: left !important }
  50  .hide { display: none !important }
  51  .show { display: block !important }
  52  .invisible { visibility: hidden }
  53  
  54  .text-hide {
  55      font: 0/0 a;
  56      color: transparent;
  57      text-shadow: none;
  58      background-color: transparent;
  59      border: 0;
  60  }
  61  
  62  .hidden {
  63      display: none ;
  64  }
  65  
  66  .affix { position: fixed }