1 files changed, 28 insertions, 0 deletions
diff --git a/node_modules/autoprefixer/lib/hacks/user-select.js b/node_modules/autoprefixer/lib/hacks/user-select.js
new file mode 100644
index 0000000..850f981
--- /dev/null
+++ b/node_modules/autoprefixer/lib/hacks/user-select.js
@@ -0,0 +1,28 @@
+let Declaration = require('../declaration')
+
+class UserSelect extends Declaration {
+  /**
+   * Avoid prefixing all in IE
+   */
+  insert(decl, prefix, prefixes) {
+    if (decl.value === 'all' && prefix === '-ms-') {
+      return undefined
+    } else {
+      return super.insert(decl, prefix, prefixes)
+    }
+  }
+
+  /**
+   * Change prefixed value for IE
+   */
+  set(decl, prefix) {
+    if (prefix === '-ms-' && decl.value === 'contain') {
+      decl.value = 'element'
+    }
+    return super.set(decl, prefix)
+  }
+}
+
+UserSelect.names = ['user-select']
+
+module.exports = UserSelect