/* 下拉菜单容器 */
.dropdown {
  position: relative;
  display: inline-block;
}

/* 下拉菜单按钮 */
.dropbtn {
  display: block;
  text-decoration: none;
  color: inherit;
}

/* 下拉菜单内容 */
.dropdown-content {
  display: none;
  position: absolute;
  background-color:#ffffff;
  min-width: 130px;
  text-align: center;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

/* 下拉菜单链接样式 */
.dropdown-content a {
  color: black;
  padding: 8px 12px;
  text-decoration: none;
  display: block;
}

/* 鼠标悬停在下拉菜单链接上的样式 */
.dropdown-content a:hover {
  background-color: #f4f4f4;
  color: #e84545;
}

/* 鼠标悬停在下拉菜单容器上时显示下拉菜单内容 */
.dropdown:hover .dropdown-content {
  display: block;
}