.ui-bg-cover { background-position: left center; }

.pinlogin .pinlogin-field { box-sizing:border-box;display:inline-block;width: 40px;height: 40px;padding: 5px;margin: 0 10px;border:1px solid #ccc;-webkit-border-radius:2px;-moz-border-radius:2px;border-radius: 2px;text-align:center; }
.pinlogin .pinlogin-field:first-of-type { margin-left: 0; }
.pinlogin .pinlogin-field:last-of-type { margin-right: 0; }
.pinlogin .pinlogin-field:read-only { border:1px solid #ddd;background:#fafafa;cursor:default; }
.pinlogin .pinlogin-field.invalid { border:1px solid red;color:red; }