.sub-menu {
    position: absolute;
    width: 12em;
    top: 48px;
    left: 0;
    background: #FFF;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
    opacity: 0;
    z-index: 999;
    visibility: hidden;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    -ms-transition: all 0.5s;
    -o-transition: all 0.5s;
    transition: all 0.5s;

    -webkit-transform-origin: 0 0;
    -moz-transform-origin: 0 0;
    -ms-transform-origin: 0 0;
    -o-transform-origin: 0 0;
    transform-origin: 0 0;

    -webkit-transform:scaleY( 0 );
    -moz-transform:scaleY( 0 );
    -ms-transform:scaleY( 0 );
    -o-transform:scaleY( 0 );
    transform:scaleY( 0 );
}
.sub-menu > li > a {
    display: block;
    padding: 8px;
    text-align: center;
    font-size: 14px;
    color: #000;
}
.sub-menu > li + li > a {
    /*border-top: 1px solid #7256D8;*/
}
.sub-menu > li:hover > a {
    background: #27a8e1;
    color:#FFF;

}
.menu > ul > li:hover .sub-menu {
    opacity: 1; visibility: visible;
    -webkit-transform:scaleY( 1 );
    -moz-transform:scaleY( 1 );
    -ms-transform:scaleY( 1 );
    -o-transform:scaleY( 1 );
    transform:scaleY( 1 );
}
.menu>ul>li{
    position: relative;
}