diff --git a/docs/advanced/keymaps.md b/docs/advanced/keymaps.md
index 5e565312e..d03f7972b 100644
--- a/docs/advanced/keymaps.md
+++ b/docs/advanced/keymaps.md
@@ -16,7 +16,7 @@ keystrokes pass through `atom-text-editor` elements:
   'ctrl-shift-e': 'editor:select-to-end-of-line'
   'cmd-left': 'editor:move-to-first-character-of-line'
 
-'atom-text-editor:not(.mini)'
+'atom-text-editor:not([mini])'
   'cmd-alt-[': 'editor:fold-current-row'
   'cmd-alt-]': 'editor:unfold-current-row'
 ```
@@ -27,8 +27,8 @@ patterns* to *commands*. When an element with the `atom-text-editor` class is fo
 `editor:delete-to-beginning-of-line` is emitted on the `atom-text-editor` element.
 
 The second selector group also targets editors, but only if they don't have the
-`.mini` class. In this example, the commands for code folding don't really make
-sense on mini-editors, so the selector restricts them to regular editors.
+`mini` attribute. In this example, the commands for code folding don't really
+make sense on mini-editors, so the selector restricts them to regular editors.
 
 ### Keystroke Patterns
 
diff --git a/docs/customizing-atom.md b/docs/customizing-atom.md
index fc763942c..1b5bceca3 100644
--- a/docs/customizing-atom.md
+++ b/docs/customizing-atom.md
@@ -63,7 +63,7 @@ built-in keymaps:
 'atom-text-editor':
   'enter': 'editor:newline'
 
-'atom-text-editor.mini input':
+'atom-text-editor[mini] input':
   'enter': 'core:confirm'
 ```
 
diff --git a/keymaps/base.cson b/keymaps/base.cson
index f187cf2ed..d9941643c 100644
--- a/keymaps/base.cson
+++ b/keymaps/base.cson
@@ -5,7 +5,7 @@
   'shift-home': 'editor:select-to-first-character-of-line'
   'shift-end': 'editor:select-to-end-of-line'
 
-'atom-text-editor:not(.mini)':
+'atom-text-editor:not([mini])':
   # Atom Specific
   'ctrl-C': 'editor:copy-path'
 
@@ -15,13 +15,13 @@
   'shift-tab': 'editor:outdent-selected-rows'
   'ctrl-K': 'editor:delete-line'
 
-'.select-list atom-text-editor.mini':
+'.select-list atom-text-editor[mini]':
   'enter': 'core:confirm'
 
 '.tool-panel.panel-left, .tool-panel.panel-right':
   'escape': 'tool-panel:unfocus'
 
-'atom-text-editor !important, atom-text-editor.mini !important':
+'atom-text-editor !important, atom-text-editor[mini] !important':
   'escape': 'editor:consolidate-selections'
 
 # allow standard input fields to work correctly
diff --git a/keymaps/darwin.cson b/keymaps/darwin.cson
index 4dd3fd8d7..5226bb5e6 100644
--- a/keymaps/darwin.cson
+++ b/keymaps/darwin.cson
@@ -136,7 +136,7 @@
   'cmd-l': 'editor:select-line'
   'ctrl-t': 'editor:transpose'
 
-'atom-workspace atom-text-editor:not(.mini)':
+'atom-workspace atom-text-editor:not([mini])':
   # Atom specific
   'alt-cmd-z': 'editor:checkout-head-revision'
   'cmd-<': 'editor:scroll-to-cursor'
diff --git a/keymaps/linux.cson b/keymaps/linux.cson
index 89ed896f9..59803d193 100644
--- a/keymaps/linux.cson
+++ b/keymaps/linux.cson
@@ -101,7 +101,7 @@
   'ctrl-k ctrl-l': 'editor:lower-case'
   'ctrl-l': 'editor:select-line'
 
-'atom-workspace atom-text-editor:not(.mini)':
+'atom-workspace atom-text-editor:not([mini])':
   # Atom specific
   'alt-ctrl-z': 'editor:checkout-head-revision'
   'ctrl-<': 'editor:scroll-to-cursor'
diff --git a/keymaps/win32.cson b/keymaps/win32.cson
index a98440d0c..da43ac364 100644
--- a/keymaps/win32.cson
+++ b/keymaps/win32.cson
@@ -98,7 +98,7 @@
   'ctrl-k ctrl-l': 'editor:lower-case'
   'ctrl-l': 'editor:select-line'
 
-'atom-workspace atom-text-editor:not(.mini)':
+'atom-workspace atom-text-editor:not([mini])':
   # Atom specific
   'alt-ctrl-z': 'editor:checkout-head-revision'
   'ctrl-<': 'editor:scroll-to-cursor'
diff --git a/src/text-editor-element.coffee b/src/text-editor-element.coffee
index 6c9a07a91..f06a25dc2 100644
--- a/src/text-editor-element.coffee
+++ b/src/text-editor-element.coffee
@@ -214,7 +214,7 @@ atom.commands.add 'atom-text-editor', stopEventPropagationAndGroupUndo(
   'editor:lower-case': -> @lowerCase()
 )
 
-atom.commands.add 'atom-text-editor:not(.mini)', stopEventPropagationAndGroupUndo(
+atom.commands.add 'atom-text-editor:not([mini])', stopEventPropagationAndGroupUndo(
   'core:move-up': -> @moveUp()
   'core:move-down': -> @moveDown()
   'core:move-to-top': -> @moveToTop()
diff --git a/static/panels.less b/static/panels.less
index 9d758309c..4d21ba814 100644
--- a/static/panels.less
+++ b/static/panels.less
@@ -99,7 +99,7 @@ atom-panel[location="modal"] {
     font-size: 1.3em;
   }
 
-  atom-text-editor.mini {
+  atom-text-editor[mini] {
     margin-bottom: 10px;
   }
 
diff --git a/static/text-editor-light.less b/static/text-editor-light.less
index aa3730614..f9795a646 100644
--- a/static/text-editor-light.less
+++ b/static/text-editor-light.less
@@ -8,7 +8,7 @@ atom-text-editor {
   line-height: 1.3;
 }
 
-atom-text-editor.mini {
+atom-text-editor[mini] {
   font-size: @input-font-size;
   line-height: @component-line-height;
   max-height: @component-line-height + 2; // +2 for borders