.b-waiting {
width: 56px;
height: 54px;
background: transparent url("images/index.gif");
position: absolute;
left: 50%;
top: 50%;
margin-left: -28px;
margin-top: -41px;
}

.warning {
font-family: Verdana, Geneva, sans-serif !important;
left: auto;
right: auto;
background: rgba(0,0,0,0.4);
color: red;
font-size: 24px;
text-align: center;
}