fix : modal close button doesn't show on ios

app/code/Joshine/CouponPusher/view/frontend/templates/coupon-subscribe-alert.phtml

@@ -91,7 +91,9 @@
         <div class="j-modal-dialog j-modal-fluid">
             <div class="j-modal-content">
                 <div class="j-modal-header">
-                    <button title="Close (Esc)" type="button" class="sparsh-mfp-close" id="coupon-alert-close"></button>
+                    <span class="joshine-close" id="coupon-alert-close">
+                        <svg t="1678760827915" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="2762" width="200" height="200"><path d="M579.888 512l190.064-190.064a48 48 0 0 0-67.888-67.872L512 444.112 321.936 254.064a48 48 0 1 0-67.872 67.872L444.112 512 254.064 702.064a48 48 0 1 0 67.872 67.872L512 579.888l190.064 190.064a48 48 0 0 0 67.872-67.888L579.888 512z" fill="#000000" p-id="2763" data-spm-anchor-id="a313x.7781069.0.i3" class="selected"></path></svg>
+                    </span>
                 </div>
                 <div class="j-modal-body">
                     <div class="coupon-alt joshine-text-center">