/* BASIC css start */
ul.link_tab_btnbox{ background-color:#fff; border-bottom:1px solid #1c1c1c; line-height:52px; text-align:center; margin:auto; display:block; padding:0; display:flex; justify-content: space-between; }
ul.link_tab_btnbox li {width:25%; height:51px; box-sizing:border-box; display:inline-block; }
ul.link_tab_btnbox li a { display:block; width:100%; height:50px; color:#999; font-size:13px; }
ul.link_tab_btnbox .selected a { color:#1c1c1c; }
ul.link_tab_btnbox.fixed {width: 1200px; position: fixed; top: 0; left: 0; right:0; margin:auto;  z-index: 999; }
/* BASIC css end */