bugfix syntax error

[a-skua]

I fixed syntax errors for attr or text when used id or class, and fixed mistake test case.

form#form-box method="post"

label.form-label for="your-name" Your Name

- syntax error: method="post"
+ <form id="form-box" method="post">
+ </form>

- syntax error: for="your-name" Your Name
+ <label class="form-label" for="your-name">Your Name</label>

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.80%. Comparing base (4a5a951) to head (565d43c).

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Additional details and impacted files

@@            Coverage Diff             @@
##           master      #19      +/-   ##
==========================================
+ Coverage   58.76%   59.80%   +1.03%     
==========================================
  Files           6        6              
  Lines         810      816       +6     
==========================================
+ Hits          476      488      +12     
+ Misses        282      279       -3     
+ Partials       52       49       -3     

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[mattn]

Sorry, I missed this PR. Could you please rebase master?

[a-skua]

@mattn
Thank you. I have rebased, so please check it.