.ost-container div {
    font-size: 16px;
    font-weight: 300;
}
.ost-container label,
.ost-container input[type="text"], 
.ost-container input[type="email"], 
.ost-container input[type="password"], 
.ost-container textarea, 
.ost-container select{
    font-size: 16px;
}
#tab_paypal {
    margin-left: 1px;
}