diff --git a/erb-formatter.gemspec b/erb-formatter.gemspec
index 9a68c5b..efacebf 100644
--- a/erb-formatter.gemspec
+++ b/erb-formatter.gemspec
@@ -28,8 +28,6 @@ Gem::Specification.new do |spec|
   spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "syntax_tree", '~> 6.0'
-
   spec.add_development_dependency "tailwindcss-rails", "~> 2.0"
   spec.add_development_dependency "m", "~> 1.0"
 end
diff --git a/lib/erb/formatter.rb b/lib/erb/formatter.rb
index a868a44..88730a5 100644
--- a/lib/erb/formatter.rb
+++ b/lib/erb/formatter.rb
@@ -8,20 +8,7 @@
 require 'securerandom'
 require 'erb/formatter/version'
 
-require 'syntax_tree'
-require 'syntax_tree/plugin/trailing_comma'
-
 class ERB::Formatter
-  module SyntaxTreeCommandPatch
-    def format(q)
-      q.group do
-        q.format(message)
-        q.text(" ")
-        q.format(arguments) # WAS: q.nest(message.value.length + 1) { q.format(arguments) }
-      end
-    end
-  end
-
   autoload :IgnoreList, 'erb/formatter/ignore_list'
 
   class Error < StandardError; end
@@ -37,7 +24,7 @@ class Error < StandardError; end
   BAD_ATTR = %r{#{ATTR_NAME}=\s+}u
   QUOTED_ATTR = Regexp.union(SINGLE_QUOTE_ATTR, DOUBLE_QUOTE_ATTR)
   ATTR = Regexp.union(SINGLE_QUOTE_ATTR, DOUBLE_QUOTE_ATTR, UNQUOTED_ATTR, UNQUOTED_VALUE)
-  MULTILINE_ATTR_NAMES = %w[class data-action]
+  MULTILINE_ATTR_NAMES = %w[data-action]
 
   ERB_TAG = %r{(<%(?:==|=|-|))\s*(.*?)\s*(-?%>)}m
   ERB_PLACEHOLDER = %r{erb[a-z0-9]+tag}
@@ -144,12 +131,12 @@ def format_attributes(tag_name, attrs, tag_closing)
       name, value = attr.split('=', 2)
 
       if value.nil?
-        attr_html << indented("#{name}")
+        attr_html << (within_line_width ? " #{name}" : indented("#{name}"))
         next
       end
 
       if /\A#{UNQUOTED_VALUE}\z/o.match?(value)
-        attr_html << indented("#{name}=\"#{value}\"")
+        attr_html << (within_line_width ? " #{name}=\"#{value}\"" : indented("#{name}=\"#{value}\""))
         next
       end
 
@@ -268,21 +255,6 @@ def format_ruby(code, autoclose: false)
       code += "\nend" unless RUBY_OPEN_BLOCK["#{code}\nend"]
       code += "\n}" unless RUBY_OPEN_BLOCK["#{code}\n}"]
     end
-    p RUBY_IN_: code if @debug
-
-    SyntaxTree::Command.prepend SyntaxTreeCommandPatch
-
-    code = begin
-      SyntaxTree.format(code, @line_width)
-    rescue SyntaxTree::Parser::ParseError => error
-      p RUBY_PARSE_ERROR: error if @debug
-      code
-    end
-
-    lines = code.strip.lines
-    lines = lines[0...-1] if autoclose
-    code = lines.map { |l| indented(l.chomp("\n"), strip: false) }.join.strip
-    p RUBY_OUT: code if @debug
     code
   end
 
diff --git a/lib/erb/formatter/command_line.rb b/lib/erb/formatter/command_line.rb
index 92cfa51..880affa 100644
--- a/lib/erb/formatter/command_line.rb
+++ b/lib/erb/formatter/command_line.rb
@@ -9,7 +9,7 @@ def self.tailwindcss_class_sorter(css_path)
     css = css.tr("\n", " ").gsub(%r{\/\*.*?\*\/},"") # remove comments
     css = css.gsub(%r<@media.*?\{>, "") # strip media queries
     css = css.scan(%r<(?:^|\}|\{) *(\S.*?) *\{>).join(" ") # extract selectors
-    classes = css.tr(","," ").split(" ").grep(/\./).uniq.map { _1.split('.').last.gsub("\\", "") }
+    classes = css.tr(","," ").split(" ").grep(/\./).uniq.map { _1.split('.').last.gsub("\\3", "").gsub("\\", "") }
     indexed_classes = Hash[classes.zip((0...classes.size).to_a)]
 
     ->(class_name) do
diff --git a/test/fixtures/attributes.html.erb b/test/fixtures/attributes.html.erb
index daaeb6d..e87be9a 100644
--- a/test/fixtures/attributes.html.erb
+++ b/test/fixtures/attributes.html.erb
@@ -9,3 +9,5 @@
      data-short-url="//test.com/?q=v"
      data-long-url="https://google.ca/this-is-a-long-url-with-a-query-string?query=something"
      data-long-url-single='https://google.ca/this-is-a-long-url-with-a-query-string?query=something'>
+<input type=text class="text-sm" hidden />
+<input name="very-long-name-should-break-because-of-longer-than-width" type=text class="text-sm" hidden />
diff --git a/test/fixtures/attributes.html.expected.erb b/test/fixtures/attributes.html.expected.erb
index 0aed143..2419918 100644
--- a/test/fixtures/attributes.html.expected.erb
+++ b/test/fixtures/attributes.html.expected.erb
@@ -8,3 +8,10 @@
   data-long-url="https://google.ca/this-is-a-long-url-with-a-query-string?query=something"
   data-long-url-single='https://google.ca/this-is-a-long-url-with-a-query-string?query=something'
 >
+<input type="text" class="text-sm" hidden/>
+<input
+  name="very-long-name-should-break-because-of-longer-than-width"
+  type="text"
+  class="text-sm"
+  hidden
+/>
diff --git a/test/fixtures/tailwindcss/class_sorting.html.erb b/test/fixtures/tailwindcss/class_sorting.html.erb
index 9ff335d..9db9519 100644
--- a/test/fixtures/tailwindcss/class_sorting.html.erb
+++ b/test/fixtures/tailwindcss/class_sorting.html.erb
@@ -7,7 +7,7 @@
 <div class="hover:opacity-75 opacity-50 hover:scale-150 scale-125">
 </div>
 
-<div class="lg:grid-cols-4 grid sm:grid-cols-3 grid-cols-2">
+<div class="lg:grid-cols-4 grid 2xl:grid-cols-4 sm:grid-cols-3 grid-cols-2">
 </div>
 
 <div class="p-3 shadow-xl select2-dropdown">
diff --git a/test/fixtures/tailwindcss/class_sorting.html.expected.erb b/test/fixtures/tailwindcss/class_sorting.html.expected.erb
index fbac470..981101a 100644
--- a/test/fixtures/tailwindcss/class_sorting.html.expected.erb
+++ b/test/fixtures/tailwindcss/class_sorting.html.expected.erb
@@ -9,7 +9,7 @@
 <div class="scale-125 opacity-50 hover:scale-150 hover:opacity-75">
 </div>
 
-<div class="grid grid-cols-2 sm:grid-cols-3 lg:grid-cols-4">
+<div class="grid grid-cols-2 sm:grid-cols-3 lg:grid-cols-4 2xl:grid-cols-4">
 </div>
 
 <div class="select2-dropdown p-3 shadow-xl">