📅  最后修改于: 2022-03-11 14:59:25.797000             🧑  作者: Mango
.nav-bar{
position:sticky;
top:0px;
font-family: Arial, Helvetica, sans-serif;
border-bottom:solid rgb(179, 173, 173) 1px;
background-color: rgb(255, 255, 255);
z-index: 1
}