Dropdown won't come to front

[subzr1]

pls give a test account so me or someone else have a look

Test account:
Username: test
Password: Skyisles1

ok
its a bit messy code there
its not on global.css
probably in header template 
search for this class

.navigation {
    background: #2f6a9c;
    height: 60px;
    border-bottom: 0px solid #607d8b;
    box-shadow: 2px 2px 3px rgba(0,0,0,.15);
    clear: both;
    border-radius: 3px;
    width: 1000px;
    margin: -29px auto 29px;
    position: relative;
    left: auto;
    right: auto;
    overflow: auto;
}

 delete the last line and, save it and it should be fine