wagtail/client/scss/overrides/_vendor.tagit.scss

// taggit tagging
.tagit {
    padding: 0.6em 1.2em;

    .tagit-choice {
        border: 0;
    }
}

// Additional specificity (.admin_tag_widget ) required to override tagit stylesheets,
// which get added after the core CSS, and otherweise trump our styles.
.admin_tag_widget ul.tagit input[type='text'] {
    padding: 0.2em 0.5em;
}

// Additional specificity (.admin_tag_widget ) required to override tagit stylesheets,
// which get added after the core CSS, and otherweise trump our styles.
.admin_tag_widget ul.tagit li.tagit-choice-editable {
    padding: 0 23px 0 0;
}

.ui-front { // provided by jqueryui but not high enough an index
    z-index: 1000;
}

.tagit-close {
    .ui-icon-close {
        margin-left: 1em;
        text-indent: 0;
        background: none;
    }

    .ui-icon-close:before {
        font-family: wagtail;
        display: block;
        color: $color-grey-3;
        content: map-get($icons, 'cross');
    }

    .ui-icon-close:hover:before {
        color: $color-red;
    }
}