📅  最后修改于: 2022-03-11 14:47:41.485000             🧑  作者: Mango
nav ul {
list-style: none;
display: flex;
background-color: black;
margin-bottom: 20px;
}
nav ul li {
padding: 20px;
}
nav ul li a {
color: white;
text-decoration: none;
}
.current {
border-bottom: 4px solid white;
}