For these modifications, navigate to /assets/css/light-bootstrap-dashboard.css.

To remove the animation, remove:

.navbar-nav .nav-item .dropdown-menu,
.dropdown .dropdown-menu {
    -webkit-transform: scale(0);
    -moz-transform: scale(0);
    -o-transform: scale(0);
    -ms-transform: scale(0);
    transform: scale(0);
    -webkit-transition: all 370ms cubic-bezier(0.34, 1.61, 0.7, 1);
    -moz-transition: all 370ms cubic-bezier(0.34, 1.61, 0.7, 1);
    -o-transition: all 370ms cubic-bezier(0.34, 1.61, 0.7, 1);
    -ms-transition: all 370ms cubic-bezier(0.34, 1.61, 0.7, 1);
    transition: all 370ms cubic-bezier(0.34, 1.61, 0.7, 1);
}

To remove the triangle, remove all of the following:

.navbar-nav .nav-item .dropdown-menu:before {
    border-bottom: 11px solid rgba(0, 0, 0, 0.2);
    border-left: 11px solid transparent;
    border-right: 11px solid transparent;
    content: "";
    display: inline-block;
    position: absolute;
    left: 12px;
    top: -11px;
}
.navbar-nav .nav-item .dropdown-menu:after {
    border-bottom: 11px solid #FFFFFF;
    border-left: 11px solid transparent;
    border-right: 11px solid transparent;
    content: "";
    display: inline-block;
    position: absolute;
    left: 12px;
    top: -10px;
}

I am using a template that makes use of Boostrap 4.Currently it’s drop-down elements are using the dropdown menu with a little triangle at the left side, and a popout animation. I’d like to change this to a dropdown menu that is flat at the top and has no animation (or a simple slide). Where do I change this setting?