#advert-once {
    position: fixed;
    display: inline-block;;
    width: 97%;
/*    max-width: 600px;  */
    height: 100px;
    bottom: 5px;
    right: auto;
/*    left: calc((100% - 360px) / 2); */
    left: 5px;
    background-color: #333;
    z-index: 99999;
    align-items: center;
    }

#advert-once-iframe {

    overflow: hidden;
    border: none;
    width: 600px;
    height: 100px;

}
    
#aadvert-once {
left: 50%;
position: fixed;
text-align:center;
bottom: 0px;
width:100%;
z-index:999;
}

#advert-once .advert-button {
    width: 20px;
    height: 20px;
    position: absolute;
    left: -3px;
    text-align: center;
    top: -3px;
    color: #fff;
    font-family: 'Oswald', sans-serif;
    background-color: #ff4500;
    border-radius: 9px;
    cursor: pointer;
    line-height: 15px;
    font-size: 20px;
    }


 #reset-session, #refresh-page {
 display: block;
 width: 250px;
 text-align: center;
 font-family: 'Oswald', sans-serif;
 border-radius: 5px;
 border: none;
 padding: 2px 5px;
 cursor: pointer;
 background-color: #ddd;
 margin: 5px 0;
 }
 
 #reset-session:hover, #refresh-page:hover {
 background-color: #f96e5b;
 }