Mensaje Alerta

on page load

by Emmanuel Garcia

HTML

<div id="modal">
    <div class="modalconent">
        <center> <h2>Aviso</h2> </center>

        <p>Please note the pool and hot tub at The Miners Club will be closed for replastering September 14th through October 2nd.  We apologize for any inconvenience this may cause.</p>
       <center> <button id="button">Close</button></center>
    </div>
</div>

CSS

#modal {
    position: fixed;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 99999;
    height: 100%;
    width: 100%;
}
.modalconent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    width: 80%;
    padding: 20px;
}

JavaScript

window.onload = function () {
    document.getElementById('button').onclick = function () {
        document.getElementById('modal').style.display = "none"
    };
};