.tpx-shopping-cart, .tpx-projectlist {
    background: #fff;
    width: 320px;
    border-radius: 3px;
    padding: 20px;
    box-shadow: 0 5px 5px 0 rgba(0,0,0,0.3);
    border: 1px solid #ccc;
    display: none;
    position: absolute;
    z-index: 50;
    right: 0;
    top: 58px;
}

.tpx-projectlist:after, .tpx-shopping-cart:after {
    bottom: 100%;
    border: solid transparent;
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
    border-bottom-color: #ccc;
    border-width: 8px;
    margin-left: -8px;
    right: 15px;
}