Remove Duplicate Jumpbox CSS

There is some duplicate CSS for the jumpbox in the common stylesheet.

File:

common.css

Delete:

.dropdown-contents a {

    display: block;

    padding: 5px;

}

Delete:

.jumpbox .dropdown-select {

    margin: 0;

}

Delete:

.jumpbox .dropdown-contents a {

    text-decoration: none;

}

Note:

The last one can be deleted because line 514 includes a text-decoration: none;