web_assets/html/close_btn.html

<button onclick='closeBtnClick("{obj}")'>
    <svg class="icon-need-hover" stroke="currentColor" fill="none" stroke-width="2" viewBox="0 0 24 24" stroke-linecap="round"
        stroke-linejoin="round" height="20" width="20" xmlns="http://www.w3.org/2000/svg"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line>
    </svg>
</button>