.btn-lupa {
    width: 42px;
    height: 42px;
    margin-left: 15px !important;
    border: none !important;
    background: transparent !important;
    color: #000 !important;
    position: relative;
    top: -8px;
}

    .btn-lupa:hover,
    .btn-lupa:focus,
    .btn-lupa:active {
        background: transparent !important;
        border: none !important;
        color: #000 !important;
        box-shadow: none !important;
    }
    .btn-lupa i {
        font-size: 24px;
    }

.btn-buscar {
    background-color: #000 !important;
    border-color: #000 !important;
    color: #fff !important;
}

    .btn-buscar:hover,
    .btn-buscar:focus,
    .btn-buscar:active {
        background-color: #000 !important;
        border-color: #000 !important;
        color: #fff !important;
        box-shadow: none !important;
    }


#txtBuscarActividad:focus {
    border-color: #000 !important;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.15) !important;
}