`Close` div 只显示在 `Navbox` 的左侧动画上，但在从上到下动画时不显示

Question

我正在 gatsby 中构建响应式导航栏，其中汉堡菜单在移动设备上从左到右打开（可以通过单击页面或单击屏幕右侧的关闭图标关闭）。

设计现在已更改为在单击时从上到下显示菜单动画，并且出于某种原因，关闭图标在使用顶部动画时不显示。我试过检查这是否是由于宽度问题/z-index 问题 - Navbox 对于左右动画，宽度方向相同，但更改了 z-index（以确保关闭图标位于 Navbox 的顶部）给了我 0 个更改。

除了我遗漏的宽度/z-index 之外，还有其他问题吗？因为即使当我尝试导航到其他页面时，网址也会更改，但导航栏不会隐藏。

谢谢！

import React, { useState, useCallback } from 'react'
import styled from 'styled-components'

import NavbarLinks from './NavbarLinks'
import LanguageMenu from './LanguageMenu'
import MenuIcon from '@material-ui/icons/Menu'
import CloseIcon from '@material-ui/icons/Close'

const Navigation = styled.div`
  box-sizing: border-box;
  margin: 0px;
  font-family: Arial;
  height: 8vh;
  display: flex;
  background-color: white;
  position: fixed;
  top: 0;
  width: 100%;
  justify-content: space-between;
  text-transform: uppercase;  
  width: 100%;
  white-space: nowrap;
  align-self: center;
  text-transform: capitalize; 
  z-index: 500;

  @media (max-width: 1000px) {
    box-sizing: border-box;
    position: fixed;
    height: 8vh;
  }
`

const Toggle = styled.div`
  display: none;
  height: 100%;
  cursor: pointer;
  padding: 0 10vw;
  @media (max-width: 1000px) {
    display: flex;
    flex-direction: column;
  }
`

const Navbox = styled.div`
  display: flex;
  height: 100%;
  align-items: center;
  padding-left: 15%;
  z-index: 300;
  border: solid;
  border-color: pink;
    
  @media (max-width: 1000px) {
    flex-direction: column;
    position: fixed;
    width: 100%;
    padding: 0;
    justify-content: flex-start;
    padding-top: 10vh;
    background-color: black;
    transition: all 0.3s ease-in;
    // left: ${props => (props.open ? '-100%' : '0')};
    top: ${props => (props.open ? '0' : '-150%')};    
  }
`

const Hamburger = styled(MenuIcon)`
  padding-top: 60%;
  flex-wrap: wrap; 
  color: red;
  align-self: center;
`

const Close = styled(CloseIcon)`
  color: white;
  position: absolute;
  top: 1.2rem;
  right: 1.5rem;
  background: transparent;
  cursor: pointer;
  border: solid;
  border-color: yellow;
  z-index: 301;
`

const Navbar = () => {
    const [navbarOpen, setNavbarOpen] = useState(false)
    const closeNav = useCallback(() => setNavbarOpen(value => !value))
  
    return (
        <Navigation>
            <Toggle navbarOpen={navbarOpen} onClick={() => setNavbarOpen(!navbarOpen)}>
                {navbarOpen ? <Hamburger open />: <Hamburger />}
            </Toggle>

            {navbarOpen ? (
                <Navbox>
                    <Close onClick={closeNav}/>
                    <NavbarLinks/>
                </Navbox>
            ) : (
                <Navbox open>
                    <NavbarLinks />
                </Navbox>
            )}
            <LanguageMenu/>
        </Navigation>
    )
}
  
export default Navbar