body.mst_feed-rule-edit {
    #rule_conditions_fieldset {
        margin-left: ~"calc(100% * 0.25 + 8px)";
        margin-top:  -3rem;

        legend {
            margin-left:   -14rem;
            border-bottom: none;

            span {
                font-size:      1.4rem;
                padding-bottom: 0;
            }
        }

        .rule-tree-wrapper {
            ul {
                padding-left: 3rem;
            }
        }
    }

    button.mst-feed_rule_preview-button {
        margin-left: ~"calc(100% * 0.25 + 8px)";
        text-shadow: none;
        margin-top:  1rem;
        width:       155px;
        text-align:  center;

        &:hover,
        &:active,
        &:focus {
            box-shadow: none;
        }
    }

    .mst-feed_rule_conditions fieldset>.admin__data-grid-loading-mask {
        display:none!important;
    }
}