.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    display: none;
    float: left;
    min-width: 10rem;
    padding: 0.5rem 0;
    margin: 0.125rem 0 0;
    font-size: 1rem;
    color: #ffffff!important;
    text-align: left;
    list-style: none;
    background-color: #7e242488;
    background-clip: padding-box;
    border: 1px solid rgba(0,0,0,.15);
    border-radius: 0.25rem;
}
.dropdown-item {
    display: block;
    width: 100%;
    padding: 0.25rem 1.5rem;
    clear: both;
    font-weight: 400;
    color: #ffffff!important;
    text-align: inherit;
    white-space: nowrap;
    background-color: transparent;
    border: 0;
}

/*Efecto Xarxes*/
.imagen:hover{
    -webkit-transform: scale(1.4);
    -moz-transform: scale(1.4);
    -o-transform: scale(1.4);
    -ms-transform: scale(1.4);
    transform: scale(1.4)
}