footer{display:flex;align-content:center;justify-content:space-between;align-items:center;height:30px;border-top:1px solid #000;background:#fff}footer .menu-area{width:50%}footer .menu-area .nav{display:flex;flex-wrap:wrap;justify-content:space-evenly}footer .menu-area .nav .oss-short-name{display:none}footer .copy-right-area{margin-top:auto;margin-bottom:auto;margin-right:10px}@media screen and (max-width: 800px){footer .menu-area .nav .oss-long-name{display:none}footer .menu-area .nav .oss-short-name{display:block}}@media screen and (max-width: 550px){footer{text-align:center;display:block;height:auto}footer .menu-area{width:auto}footer .menu-area .nav{display:block}footer .menu-area .nav li{border-bottom:#000 solid 1px}footer .copy-right-area{margin-right:auto}}