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[jQuery].css()で複数のcssプロパティ変更

A Pen By nkmrkisk

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HTML

            
              <button id="aka">文字を赤くするボタン</button>
<div id="target">ここの文字色が変わるよ！</div>
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JS

            
              $(function(){
  $('#aka').on('click',function(){
    $('#target').css({'color':'blue','font-size':'20px'});
  })
})
!
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