document.addEventListener('click', (e) => {
    if (e.target.id == 'send-btn') {
        e.preventDefault();
        var modal = document.getElementById("myModal");
        modal.style.display = "block";
    }
})

var modal = document.getElementById("myModal");
var span = document.getElementById("close");
span.onclick = function () {
    var modal = document.getElementById("myModal");
    modal.style.display = "none";
}
window.onclick = function (event) {
    if (event.target == modal) {
        modal.style.display = "none";
    }
}