{
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          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/columns",
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              {
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              },
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                "prefix": "-webkit-",
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                "version_added": "52"
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                "prefix": "-moz-",
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              "version_added": "3.2"
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              {
                "version_added": true
              },
              {
                "prefix": "-webkit-",
                "version_added": "2"
              }
            ]
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            "standard_track": true,
            "deprecated": false
          }
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            "description": "On <code>display: table-caption</code>",
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                "version_added": true
              },
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                "version_added": true
              },
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                "version_added": true
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                "version_added": true
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                "version_added": true
              },
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              },
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                "version_added": true
              },
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                "version_added": true
              }
            },
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              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}