#tera-tip-modal { display:none; position:fixed; top:0; left:0; width:100%; height:100%; background:rgba(0,0,0,0.5); z-index:9999; }
#tera-tip-modal .modal-content { background:#fff; max-width:400px; margin:100px auto; padding:20px; border-radius:8px; text-align:center; }