有人懂CSS指令嗎？我用57版加上下面指令只能在書籤工具列顯示16X個網址 有辦法顯示出3XX個網址嗎？



@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

/* Recreates the basic functionality of the popular Roomy Bookmarks Toolbar add-on:
Hide bookmarks bar items label text, show on hover. */

.bookmark-item > .toolbarbutton-text {
margin-top: -1px !important;
}
.bookmark-item:not(:hover):not([open="true"]) > .toolbarbutton-text {
display: none !important;
}

#PlacesToolbarItems > .bookmark-item:not(:hover):not([open="true"]) > .toolbarbutton-icon[label]:not([label=""]) {
margin-inline-end: 0px !important;
}


#PlacesToolbarItems{
margin-top: 7px !important;
height: 50px!important;
}
#PlacesToolbarItems>.box-inherit.scrollbox-innerbox{
overflow: auto!important;
float: left!important;
}

#PersonalToolbar{
/*
2行 = 4rem;
3行 = 6rem;
*/
height:4rem !important;
max-height:8rem !important;
}


/*设置书签排列方式为先上下后左右*/
.bookmark-item[container] >menupopup>hbox .scrollbox-innerbox{
min-height: 21px !important;
height:auto!important;
display: inline-flex !important;
flex-flow:column wrap !important;
overflow:-moz-hidden-unscrollable!important;
}