background-size: auto 100%;
background-position: top left;
<div class='custom-textarea'>
<textarea class='custom-textarea__textarea'></textarea>
<div class='custom-textarea__buttons'>
<button class='custom-textarea__btn js-custom-textarea-attach-click'>
<!-- иконка скрепки -->
</button>
<button class='custom-textarea__btn js-custom-textarea-send-click'>
<!-- иконка самолета -->
</button>
</div>
</div>
BX.setJSList([...]);
<div class='container'>
<div class='row'>
<button class='col-xs-6'></button>
<button class='col-xs-6'></button>
</div>
</div>
$(".form-item input").on("change",function(){
if (this.value !== "") {
$(this).parent().find('label').css({'display':'none'});
}
});