<!-- Load chart dengan menggunakan ID -->
<div class="row col-sm-6" id="container" style="padding: 20;"></div>
<div class="row col-sm-6" id="container2" style="padding: 20;"></div>
<div class="row col-sm-6" id="container3" style="padding: 20;"></div>
<div class="row col-sm-6" id="container4" style="padding: 20;"></div>