I want to change div which the id is **`__next`** on login page.
But when I add style in jsx, it seems change to another div with id **#\_\_next.jsx-2357705899, .main.jsx-2357705899** while dom mounts to page.

How could I change css of **`__next`** div when login page is mount?

```
<style jsx>{`
  #__next,
  .main {
    height: 100%;
  }
`}</style>

```