menus-core.css

/*!
Pure v1.0.1
Copyright 2013 Yahoo!
Licensed under the BSD License.
https://github.com/pure-css/pure/blob/master/LICENSE.md
*/
/*csslint adjoining-classes: false, box-model:false*/
.pure-menu {
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
}

.pure-menu-fixed {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 3;
}

.pure-menu-list,
.pure-menu-item {
    position: relative;
}

.pure-menu-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.pure-menu-item {
    padding: 0;
    margin: 0;
    height: 100%;
}

.pure-menu-link,
.pure-menu-heading {
    display: block;
    text-decoration: none;
    white-space: nowrap;
}