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 * Bootstrap v3.3.7 (http://getbootstrap.com)
 * Copyright (c) 2011-2016 Twitter, Inc.
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// Clearfix
//
// For modern browsers
// 1. The space content is one way to avoid an Opera bug when the
//    contenteditable attribute is included anywhere else in the document.
//    Otherwise it causes space to appear at the top and bottom of elements
//    that are clearfixed.
// 2. The use of `table` rather than `block` is only necessary if using
//    `:before` to contain the top-margins of child elements.
//
// Source: http://nicolasgallagher.com/micro-clearfix-hack/

.clearfix() {
  &:before,
  &:after {
    content: " "; // 1
    display: table; // 2
  }
  &:after {
    clear: both;
  }
}