* {
    transition: background .5s;
}

nav {
    display: block;
    background-color: #FAFAFA;
    -webkit-border-top-left-radius: 0.5em;
    -moz-border-top-left-radius: 0.5em;
    border-top-left-radius: 0.5em;
    -webkit-border-top-right-radius: 0.5em;
    -moz-border-top-right-radius: 0.5em;
    border-top-right-radius: 0.5em;
    margin-top: 20px;
    width: 100%;
    position: relative;
    z-index: 999;
}

    nav ul#menu {
        width: 100%;
        padding-left: 0;
        text-align: center;
        margin-bottom: 0;
    }

        nav ul#menu li {
            display: inline-block;
            width: 14%;
        }

            nav ul#menu li a {
                display: block;
                height: 50px;
                font-size: 14px;
                line-height: 50px;
                color: #000;
                text-decoration: none;
                text-align: center;
                padding: 0 15px;
                border-top: 3px solid transparent;
                -webkit-box-sizing: border-box;
                -moz-box-sizing: border-box;
                box-sizing: border-box;
            }

                nav ul#menu li a:hover, nav ul#menu li:hover > a {
                    border-top: 3px solid #41ADC8;
                    -webkit-transition: all .5s;
                    -moz-transition: all .5s;
                    transition: all .5s;
                }

            nav ul#menu li:hover > #mega {
                display: block;
            }

#mega {
    position: absolute;
    top: 88%;
    left: 0;
    width: 100%;
    height: auto;
    padding: 20px 30px;
    background: #47ADC6;
    display: none;
}

    #mega h3 {
        font-size: 17px;
        color: #fff;
        border-bottom: 1px solid rgba(255,255,255,.31);
        padding-bottom: 15px;
    }

ul#menu ul {
    width: 100%;
    height: 196px;
    padding: 0;
    list-style: none;
}

    ul#menu ul li {
        float: left;
        width: 23%;
    }

        ul#menu ul li a {
            display: block;
            height: 30px;
            line-height: 1.3em;
            color: #fff;
            text-decoration: none;
            /*padding: 6px 0;*/
            text-align: left;
        }


            ul#menu ul li a:hover {
                color: rgba(255,255,255,.5);
                background: none;
                border: 0;
                -webkit-transition: all .5s;
                -moz-transition: all .5s;
                transition: all .5s;
            }

/* clearfix */
nav ul:after {
    content: ".";
    display: block;
    clear: both;
    visibility: hidden;
    line-height: 0;
    height: 0;
}