是不是因为被设置成鼠标无法点击了？

@shuxhan 应该改成什么？

@shawndev 就是多级导航，章节下边有子章节

@shawndev 感觉 Bookstack 最大的缺点是没有嵌套目录，作者不想添加这个。。。

这是我的 nginx 配置，但是打开之后显示 502 Bad Gateway 错误，我也不知道是否还需要配置 php-pfm 和 bookstack
```nginx
server
{
listen 80;
#listen [::]:80;
server_name book.xxxxxx.xxx ;
index index.php index.html index.htm default.php default.htm default.html;
root /home/www/BookStack/public;

#error_page 404 /404.html;

# Deny access to PHP files in specific directory
#location ~ /(wp-content|uploads|wp-includes|images)/.*\.php$ { deny all; }

include enable-php-pathinfo.conf;

location /
{
proxy_pass http://localhost:9000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header REMOTE_HOST $remote_addr;
try_files $uri $uri/ /index.php?$query_string;
}

location ~ .*\.(php|css|rss|jsp|cgi|asp|aspx|flv|xml|gif|jpg|jpeg|png|bmp|swf)$
{
proxy_pass http://localhost:9000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header REMOTE_HOST $remote_addr;
}

}

server
{
listen 443 ssl http2;
#listen [::]:443 ssl http2;
server_name book.xxxxxx.xxxx ;
index index.php index.html index.htm default.php default.htm default.html;
root /home/www/BookStack/public;

# Deny access to PHP files in specific directory
#location ~ /(wp-content|uploads|wp-includes|images)/.*\.php$ { deny all; }

include enable-php-pathinfo.conf;

location /
{
proxy_pass http://localhost:9000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header REMOTE_HOST $remote_addr;

try_files $uri $uri/ /index.php?$query_string;
}

location ~ .*\.(php|css|rss|jsp|cgi|asp|aspx|flv|xml|gif|jpg|jpeg|png|bmp|swf)$
{
proxy_pass http://localhost:9000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header REMOTE_HOST $remote_addr;
}


location ~ /.well-known {
allow all;
}

location ~ ^/(?:\.htaccess|data|config|db_structure\.xml|README)
{
deny all;
}

access_log /home/www/logs/bookstack_access.log;
error_log /home/www/logs/bookstack_error.log;
}

```

@skyroam 我明白了，这个是用鼠标滚动造成的。。。。

@SpaceVim 关闭和打开真色都会有，只是颜色不一样，我的终端是 Win10 自带的 Ubuntu 子系统
我试了一下，有的主题不用真色好像没有这种背景

@justfan 直接用 linux 的复制命令吧，没用过局部复制不知道能不能。