mdb-ui-kit/less/buttons.less

// main: material.less

.btn-shadow() {
    .shadow-z-2();
    transition: box-shadow 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    &:active:not(.btn-link) {
        .shadow-z-3();
    }
}

.btn {
    position: relative;
    padding: 8px 30px;
    border: 0;
    margin: 10px 1px;

    cursor: pointer;
    border-radius: 4px;
    text-transform: uppercase;
    text-decoration: none;
    color: @darkbg-text;

    &:hover {
        color: @darkbg-text;
    }
    &:hover:not(.btn-link) {
        .shadow-z-2-hover();
    }
    transition: box-shadow 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    &:active:not(.btn-link) {
        .shadow-z-3();
    }
    outline: none !important;

    .variations(~":not(.btn-link)", background-color, @btn-default);

}
// This is needed to style buttons which has not a variation suffix (they must stiled as btn-default)
.btn-link, .btn:not([class^="btn btn-"]), .btn-default {
    color: @lightbg-text;
    &:hover {
        color: @lightbg-text;
    }
}
.btn:not([class^="btn btn-"]), .btn-default {
    &:hover {
        background-color: rgba(255,255,255,0.5);
    }
}

.btn-raised {
    .btn-shadow();
}

.open > .dropdown-toggle.btn {
    .variations(~"", background-color, @btn-default);
}
.btn-flat {
    box-shadow: none !important;
    &.btn-default:hover {
        background: none;
    }
}

.btn-group, .btn-group-vertical {
    position: relative;
    border-radius: 4px;
    margin: 10px 1px;

    .btn-shadow();
    &.open .dropdown-toggle {
        box-shadow: none;
    }
    &.btn-group-raised {
        .btn-shadow();
    }
    .btn, .btn:active, .btn-group {
        box-shadow: none !important;
        margin: 0;
    }
    .btn:active .caret { margin-left: -1px; }
}
.btn-group-flat {
    box-shadow: none !important;
}