figureslibres.cc/user/plugins/admin/themes/grav/scss/template/modules/_buttons.scss

%button {
	display: inline-block;
	padding: 0.5rem 1rem;
    font-weight: 400;
    cursor: pointer;
    vertical-align: middle;
    outline: none;

    &:active {
        margin: 1px 0 -1px 0;
    }

    i {
        //margin-right: 5px;
    }

    &.button-small {
        padding: 4px 8px;
        font-size: 95%;
    }

    &.button-x-small {
        padding: 2px 5px;
        font-size: 90%;
    }

    &:disabled {
        opacity: .6;
        cursor: no-drop;
    }

}

@mixin button-color($color, $text:$white, $lighter:null) {
	color: rgba($text, 0.85);
	border-radius: $border-radius;
    background: $color;

    @if ($lighter == null) {
        $lighter: lightness($color) > 50;
    }

    @if ($lighter) {
        &:hover {
            background: shade($color,15%);
            color: $text;
        }
        &.dropdown-toggle {
            border-left: 1px solid lighten($color, 5%);
        }
    } @else {
        &:hover {
            background: tint($color,15%);
            color: $text;
        }
        &.dropdown-toggle {
            border-left: 1px solid darken($color, 5%);
        }
    }
}