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Extra white space above Grid component from Material UI

When applying Grid to my post layout on my social media website, for some reason I am left with extra white space above the Grid element or GIF in this case. How do I remove this extra white space? Here is an image of the whitespace:
Here is an image of what logged for the whitespace via inspect:
Here is the code in question:
import { useEffect, useState, useMemo, useRef } from "react";
import userInformation from "../../services/userInformation";
import { Link, useNavigate } from "react-router-dom";
import ReactPlayer from 'react-player'
import VectorIllustration from "./VectorIllustration";
import AvatarPicture from '../../images/AvatarPicture.png'
import HomeTwoToneIcon from '#mui/icons-material/HomeTwoTone';
import { Avatar } from "#nextui-org/react";
import PageviewTwoToneIcon from '#mui/icons-material/PageviewTwoTone';
import GroupsTwoToneIcon from '#mui/icons-material/GroupsTwoTone';
import EmailTwoToneIcon from '#mui/icons-material/EmailTwoTone';
import SettingsApplicationsTwoToneIcon from '#mui/icons-material/SettingsApplicationsTwoTone';
import { Dialog, Button, IconButton, ImageList, ImageListItem, InputAdornment, DialogTitle } from "#mui/material";
import { TextField, Grid } from "#mui/material";
import { useDispatch, useSelector } from "react-redux";
import { storeUserInformation } from "../../reducers/storeInformationReducer";
import { Loading } from '#nextui-org/react'
import '../../style-sheets/Home.css'
import FavoriteBorderTwoToneIcon from '#mui/icons-material/FavoriteBorderTwoTone';
import FavoriteIcon from '#mui/icons-material/Favorite';
import HeartBrokenIcon from '#mui/icons-material/HeartBroken';
import MessageIcon from '#mui/icons-material/Message';
import IosShareOutlinedIcon from '#mui/icons-material/IosShareOutlined';
import MessageOutlinedIcon from '#mui/icons-material/MessageOutlined';
import InfiniteScroll from 'react-infinite-scroll-component'
import ViewProfileBox from "./ViewProfileBox";
const Home = () => {
const state = useSelector(state => state)
const [savedUser, setSavedUser] = useState()
const [like, setLike] = useState([])
const [mouseOver, setMouseOver] = useState(false)
const [replies, setReplies] = useState([])
const [numberOfPosts, setNumberOfPosts] = useState(Array.from({ length: 5}))
const [hasMore, setHasMore] = useState(true)
const [open, setOpen] = useState(false)
const [imageToView, setImageToView] = useState('')
const dispatch = useDispatch();
const navigate = useNavigate();
useEffect(() => {
const initializer = async () => {
const user = await JSON.parse(window.localStorage.getItem('loggedAppUser'))
setSavedUser(user)
userInformation.setToken(user.token)
const response = await userInformation.findUser(user.user.email)
const arrayOfKeys = Object.keys(response.data.user)
const arrayOfValues = Object.values(response.data.user)
let i = 0
arrayOfKeys.forEach(element => {
dispatch(storeUserInformation(arrayOfValues[i], element))
i++
});
}
initializer()
}, [])
useEffect(() => {
setLike(numberOfPosts.map((post, i) => (like[i] === undefined ? false : like[i])))
setReplies(numberOfPosts.map((post, i) => (replies[i] === undefined ? false : replies[i])))
}, [numberOfPosts])
const handleLike = (index) => {
setLike(like.map((val, i) => index === i ? !val : val));
}
const handleReplies = (index) => {
setReplies(replies.map((val, i) => index === i ? !val : val));
}
const handleOpen = (e) => {
setOpen(true)
setImageToView(e)
}
const handleClose = () => setOpen(false)
const style = {
position: 'absolute',
top: '50%',
left: '50%',
transform: 'translate(-50%, -50%)',
width: 400,
bgcolor: 'background.paper',
border: '2px solid #000',
boxShadow: 24,
p: 4,
};
const fetchMoreData = () => {
console.log(state.posts)
console.log(numberOfPosts.length)
if ((Object.entries(state.posts)).length - numberOfPosts.length < 5) {
setTimeout(() => {
setNumberOfPosts(numberOfPosts.concat(Array.from({length: ((Object.entries(state.posts)).length - numberOfPosts)})))
}, 1500)
setHasMore(false)
return;
} else {
setTimeout(() => {
setNumberOfPosts(numberOfPosts.concat(Array.from({length: 5})))
}, 1500)
}
}
return (
<>
<div style={{
position: 'relative',
width: '1920px',
height: '1080px',
background: '#F7F9FE'}}>
<VectorIllustration />
<h1 style={{position: 'absolute', width: '30%', height: '5%', left: '20%', top: '4%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '400', fontSize: '32px', lineHeight: '40px', color: '#000000'}}>Welcome {state.storage.name}!</h1>
<Link to='/home' style={{position: 'absolute', width: '10%', height: '6.5%', left: '2%', top: '20%', background: 'linear-gradient(90deg, rgba(255, 255, 255, 0.47) 0%, rgba(255, 255, 255, 0) 93.56%)', textDecoration: 'none', color: '#FFFFFF', display: 'flex', textAlign: 'center', justifyContent: 'center', flexDirection: 'column'}}>Home</Link>
<HomeTwoToneIcon style={{position: 'absolute', left: "3%", top: '21.5%', fontSize: '225%'}} color='primary' />
<Avatar src={state.storage.profileImageURL ? state.storage.profileImageURL : AvatarPicture} style={{position: 'absolute', left: '83.5%', top: '11%', height: '132px', width: '132px'}}></Avatar>
<Link to='/findasponsor' style={{position: 'absolute', width: '10%', height: '6.5%', left: '3.5%', top: '29%', textDecoration: 'none', color: '#FFFFFF', display: 'flex', textAlign: 'center', justifyContent: 'center', flexDirection: 'column'}}>Find A Sponsor</Link>
<PageviewTwoToneIcon style={{position: 'absolute', left: "3%", top: '30.5%', fontSize: '225%', opacity: '0.7'}} />
<Link to='/Groups' style={{position: 'absolute', width: '10%', height: '6.5%', left: '3.5%', top: '37%', textDecoration: 'none', color: '#FFFFFF', display: 'flex', textAlign: 'center', justifyContent: 'center', flexDirection: 'column'}}>Groups</Link>
<GroupsTwoToneIcon style={{position: 'absolute', left: "3%", top: '38.6%', fontSize: '225%', opacity: '0.75'}} />
<Link to='/Messsages' style={{position: 'absolute', width: '10%', height: '6.5%', left: '3.5%', top: '45%', textDecoration: 'none', color: '#FFFFFF', display: 'flex', textAlign: 'center', justifyContent: 'center', flexDirection: 'column'}}>Messages</Link>
<EmailTwoToneIcon style={{position: 'absolute', left: "3%", top: '46.5%', fontSize: '225%', opacity: '0.75'}} />
<Link to='/Settings' style={{position: 'absolute', width: '10%', height: '6.5%', left: '3.5%', top: '54%', textDecoration: 'none', color: '#FFFFFF', display: 'flex', textAlign: 'center', justifyContent: 'center', flexDirection: 'column'}}>Settings</Link>
<SettingsApplicationsTwoToneIcon style={{position: 'absolute', left: "3%", top: '55.5%', fontSize: '225%', opacity: '0.75'}} />
<h1 style={{position: 'absolute', width: '201px', height: '76px', left: '4%', top: '68%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '500', fontSize: '26px', lineHeight: '38px', textAlign: 'center', color: '#1B1C1F', textDecoration: 'underline'}}>Go Local</h1>
<p style={{position: 'absolute', width: '201px', height: '76px', left: '4%', top: '73%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '500', fontSize: '15px', textAlign: 'center', color: 'black'}}>Currently, you are viewing sponsors/ sponsees globally. Would you like to view only sponsors/sponsees in your country?</p>
<Button style={{position: 'absolute', left: '4.5%', top: '85%', background: '#FFFFFF', borderRadius: '16px'}}>No</Button>
<Button style={{position: 'absolute', left: '10.5%', top: '85%', background: '#FFFFFF', borderRadius: '16px'}} onClick={(e) => navigate('./Settings')}>Yes</Button>
<h1 style={{position: 'absolute', top: '70%', left: '78%'}}>Trending Users</h1>
<Link to='/home/:id' style={{position: 'absolute', top: '73.25%', left: '94%'}}>View all</Link>
<p style={{position: 'absolute', top: '20%', left: '79%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '600', fontSize: '20px', lineHeight: '25px', textAlign: 'center'}}>{state.storage.followers}</p>
<p style={{position: 'absolute', top: '23%', left: '77.5%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '300', fontSize: '16px', lineHeight: '20px', textAlign: 'center', color: '#A2ADBC'}}>Followers</p>
<p style={{position: 'absolute', top: '20%', left: '94.5%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '600', fontSize: '20px', lineHeight: '25px', textAlign: 'center'}}>{state.storage.following}</p>
<p style={{position: 'absolute', top: '23%', left: '93%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '300', fontSize: '16px', lineHeight: '20px', textAlign: 'center', color: '#A2ADBC'}}>Following</p>
<h1 style={{position: 'absolute', top: '28%', left: '83.6%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '500', fontSize: '20px', lineHeight: '25px', textAlign: 'center'}}>{state.storage.name}</h1>
<p style={{position: 'absolute', width: '360px', height: '54px', left: '77.6%', top: '33%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '300', fontSize: '14px', lineHeight: '18px', textAlign: 'center', color: '#6D7683'}}>{state.storage.biography}</p>
<ViewProfileBox savedUser={savedUser}/>
{(Object.values(state.posts)).length !== 0 ?
<InfiniteScroll height='100%' dataLength={numberOfPosts.length} next={fetchMoreData} hasMore={hasMore} loader={<Loading style={{position: 'absolute', left: '50%'}}/>}
id='all-post-container' scrollThreshold={0.5} endMessage={<p style={{ textAlign: "center" }}>
<b>That's all folks!</b>
</p>}
style={{position: 'absolute', top: '25%', left: '20%', backgroundColor: '#F7F9FE', height: '72%', width: "54%", borderRadius: '30px'}}>
<Grid
container
direction="column"
justifyContent="center"
alignItems="center"
spacing={15}
>
{numberOfPosts.map((key, i) => {
return (
<Grid container item>
<Grid item xs={12} container style={{backgroundColor: 'white', paddingTop: '20px'}}>
{/* avatar, username, etc */}
<Grid item xs={1} container style={{ justifyContent: "center" }}>
<Avatar src={AvatarPicture} />
</Grid>
<Grid item container xs={11} style={{ gap: "10px" }}>
<Grid item xs={11}>
#{state.posts[i]?.username}
</Grid>
<Grid item xs={11}>
{state.posts[i]?.location} {state.posts[i]?.date}
</Grid>
</Grid>
</Grid>
<Grid item xs={12} className="indent2" style={{backgroundColor: 'white'}}>
{/* post text */}
<p
className="Post"
style={{
padding: "1em",
backgroundColor: "#FFFBEE",
borderRadius: "20px",
margin: '1%'
}}
>
{state.posts[i]?.text}
</p>
</Grid>
{state.posts[i]?.video && (
<Grid item xs={12} className="indent2" style={{backgroundColor: 'white'}}>
{/* post video */}
<ReactPlayer url={state.posts[i].video} controls width='100%'/>
</Grid>
)}
<Grid container wrap="nowrap">
{state.posts[i]?.images && (
<Grid item xs={12} className="indent2" style={{backgroundColor: 'white'}}>
{/* post image */}
<ImageList sx={{overflowX: 'auto' }} rowHeight={200}>
<ImageListItem sx={{display: 'flex', flexDirection: 'row'}}>
{state.posts[i].images.map(image => {
return (
<img
src={image}
alt='title'
loading='lazy'
style={{paddingRight: '1em', objectFit: 'contain'}}
onClick={(e) => handleOpen(e.target.src)}
/>
)
})}
<Dialog
open={open}
onClose={handleClose}
style={{ maxWidth: "100%", maxHeight: "100%" }}
BackdropProps={{invisible: true}}
>
<img
style={{ width: 'auto', height: '100%' }}
src={imageToView}
alt="image"
/>
</Dialog>
</ImageListItem>
</ImageList>
</Grid>
)}
</Grid>
<Grid container wrap="nowrap">
{state.posts[i]?.gif && (
<Grid item xs={12} className="indent2" style={{backgroundColor: 'white'}}>
{/* post gif */}
<img src={state.posts[i].gif} style={{objectFit: 'contain'}} />
</Grid>
)}
</Grid>
<Grid item xs={12} className="indent2" style={{backgroundColor: 'white'}}>
{/* icon bar */}
<Grid container style={{ padding: 12, gap: 20 }}>
<Grid item>
<IconButton
onClick={() => handleLike(i)}
onMouseLeave={() => setMouseOver(false)}
onMouseOver={() => setMouseOver(true)}
>
{like[i]&& mouseOver ? (
<HeartBrokenIcon style={{ color: "red" }} />
) : like[i] ? (
<FavoriteIcon style={{ color: "red" }} />
) : (
<FavoriteBorderTwoToneIcon />
)}
</IconButton>{" "}
{state.posts[i]?.likes}
</Grid>
<Grid item>
<IconButton onClick={() => handleReplies(i)}>
{replies[i] ? (
<MessageIcon color="primary" />
) : (
<MessageOutlinedIcon />
)}
</IconButton>{" "}
{state.posts[i]?.comments}
</Grid>
<Grid item>
<IconButton>
<IosShareOutlinedIcon />
</IconButton>{" "}
{state.posts[i]?.shares}
</Grid>
</Grid>
</Grid>
<Grid item xs={12} className="indent2" style={{backgroundColor: 'white', borderRadius: '16px'}}>
{/* comment */}
<TextField
InputProps={{
startAdornment: (
<InputAdornment>
<Avatar src={state.storage.profileImageURL} style={{ marginRight: 12 }} />
</InputAdornment>
),
classes: {
notchedOutline: "notched-outline-border-radius"
},
maxLength: 500
}}
maxRows={10}
multiline
placeholder="Write your comment"
style={{ width: "100%" }}
/>
</Grid>
</Grid>
)})}
</Grid>
</InfiniteScroll> : <div id='content-loader' style={{position: 'absolute', top: '25%', left: '20%', backgroundColor: '#F7F9FE', height: '72%', width: "54%", borderRadius: '30px'}}><Loading size='lg' style={{position: 'absolute', left: '50%', top: '50%'}}/></div>}
</div>
</>
)
}
export default Home;
Here is the code that deals specifically with the posting of a gif:
<Grid container wrap="nowrap">
{state.posts[i]?.gif && (
<Grid item xs={12} className="indent2" style={{backgroundColor: 'white'}}>
{/* post gif */}
<img src={state.posts[i].gif} style={{objectFit: 'contain'}} />
</Grid>
)}
</Grid>

I found the solution. The whitespace had the same measurements for the Grid of the post for images. For some reason, even though a post only had a GIF, it was acting as if it also had an image because images is set with an empty array, so to avoid the Grid for images to be rendered i placed a state.posts[i].images.length > 0 ultimatum so there has to be at least 1 image for the image Grid to execute...

How do i stick content in between two other items using CSS?

I am currently working on the design of user's post for my website. However, whenever the user uploads a video, it currently looks like this:
The post looks ugly and the video is placed inside of the yellow textbox, I wanna place it just below the yellow textbox. Here is an image showing where I would like the video to be placed (forgive me for the ugly handwriting):
And when the video is placed, I would like the content around it to be "pushed away" so they are not stuck on top of eachother.
Here is my code in question:
<Grid container item>
<div id="post-container" style={{margin: '5%', position: 'absolute', width: '90%', height: '40%', backgroundColor: 'white', borderRadius: '30px', overflow: 'auto'}}>
<Avatar src={<AvatarPicture/>} style={{position: 'absolute', left: '1%', top: '3%', height: '60px', width: '60px'}} size='lg'></Avatar>
<p style={{position: 'absolute', left: '9%', top: '-5%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '500', fontSize: '20px', lineHeight: '25px', overflow: 'auto'}}>#{state.posts[i].username}</p>
<p style={{position: 'absolute', left: '9%', top: '10%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '400', fontSize: '16px', lineHeight: '20px', color: '#6D7683'}}>{state.storage.location}</p>
<p style={{position: 'absolute', left: '20%', top: '10%', fontFamily: 'Outfit', fontStyle: 'normal', fontWeight: '400', fontSize: '16px', lineHeight: '20px', color: '#2D87FF'}}>{state.posts[i].date}</p>
<div id="text-container" style={{position: 'absolute', top: '30%', left: '5%', backgroundColor: '#FFFBEE', height: 'auto', width: '90%', borderRadius: '16px', overflowY: 'auto', overflowWrap: 'break-word', wordWrap: 'break-word', msWordBreak: 'break-word', wordBreak: 'break-word'}}><p style={{margin: '1em'}}>{state.posts[i].text}</p>{<ReactPlayer url={state.posts[i].video} />}</div>
<TextField InputProps={{
startAdornment: (
<InputAdornment>
<Avatar src={state.storage.profileImageURL} />
</InputAdornment>
),
classes: {
notchedOutline: 'notched-outline-border-radius'
}
}} maxRows={10} inputProps={{maxLength: 500}} multiline style={{position: 'absolute', left: '5%', top: '78%', width: '90%', background: '#F8FAFF', border: '1px solid #D9E1F9', borderRadius: '16px'}} placeholder='Write your comment'></TextField>
<IconButton onClick={() => handleLike(i)} style={{ position: 'absolute', top: '60%', left: '5%'}} onMouseLeave={() => setMouseOver(false)} onMouseOver={() => setMouseOver(true)}>{like[i] && mouseOver ? <HeartBrokenIcon style={{color: 'red'}}/> : like[i] ? <FavoriteIcon style={{color: 'red'}} /> : <FavoriteBorderTwoToneIcon /> }</IconButton>
<p style={{position: 'absolute', top: '59%', left: '9%'}}>{state.posts[i].likes}</p>
<IconButton onClick={() => handleReplies(i)} style={{ position: 'absolute', top: '60%', left: '13%'}}>{replies[i] ? <MessageIcon color="primary"/> : <MessageOutlinedIcon/>}</IconButton>
<p style={{position: 'absolute', top: '59%', left: '17%'}}>{state.posts[i].comments}</p>
<IconButton style={{ position: 'absolute', top: '60%', left: '23%'}}><IosShareOutlinedIcon /></IconButton>
<p style={{position: 'absolute', top: '59%', left: '27%'}}>{state.posts[i].shares}</p>
</div>
</Grid>

Material UI Dialog Box Shadow Removal

I am currently using the Material UI dialog to show some information about a location marker. I would like to disable the ugly box shadow surrounding the component. I have set box-shadow: none and have tried multiple solutions, but none of them seem to work!
Screenshot
Here is my code for this component
const useStyles = makeStyles({
root: {
maxWidth: '400px',
marginLeft: '5px',
width: '446px',
height: '200px',
marginTop: '50px',
overflow: 'hidden',
boxShadow: 'none',
},
closeButton: {
color: Colours.Black,
float: 'right',
paddingTop: '15px',
marginRight: '5px',
marginLeft: 'auto',
height: '24px',
width: '24px',
},
flexContainerContent: {
display: 'flex',
justifyContent: 'space-between',
paddingRight: '10px',
},
flexContainerButtons: {
display: 'flex',
justifyContent: 'space-between',
padding: '0px 18px 15px 18px',
},
});
const InfoWindow = ({
title,
address,
open,
handleClose,
}: {
title: string;
address: string;
open: boolean;
handleClose: () => void;
}) => {
const infoStyles = useStyles();
return (
<Dialog
classes={{ root: infoStyles.root }}
open={open}
onClose={handleClose}
hideBackdrop
disableEnforceFocus
>
<Container classes={{ root: infoStyles.flexContainerContent }}>
<DialogContent style={{ overflow: 'hidden', paddingLeft: '0px', boxShadow: 'none' }}>
<Typography variant="body1" color="textSecondary">
Name:
<span
style={{ display: 'inline', color: Colours.Black }}
color="textPrimary"
>
{` ${title} `}
</span>
</Typography>
<Typography variant="body1" color="textSecondary">
Location:
<span
style={{ display: 'inline', color: Colours.Black }}
color="textPrimary"
>
{` ${address} `}
</span>
</Typography>
</DialogContent>
<CloseIcon
onClick={handleClose}
classes={{ root: infoStyles.closeButton }}
/>
</Container>
<DialogActions style={{ padding: '0px', boxShadow: 'none' }}>
<Container classes={{ root: infoStyles.flexContainerButtons }}>
<Button size="small" style={{ color: Colours.Danger }}>
Delete
</Button>
<Button size="small" style={{ color: Colours.Secondary }}>
Edit
</Button>
</Container>
</DialogActions>
</Dialog>
);
};
export default InfoWindow;
Would really appreciate any sort of help or advice!

You need to target the Paper inside the Dialog.
One way of doing this is adding this CSS rule:
.MuiDialog-container .MuiPaper-root {
box-shadow: none;
}

zIndex doesn't work in component

I have a blue header which i want to take part of that on another view with an animate event. but before i execute animate function i set the zIndexes manually and knew it doesn't work at all!! means nothing will change when i give 1 or 100 or other value to zIndex property of my components :(
<View style={{ flex: 1 }}>
<Animated.View style={{
position: 'absolute',
top: 0,
left: 0, right: 0,
backgroundColor: 'lightskyblue',
height: headerHight,
zIndex: 1,//Look here <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
alignItems: 'center',
}}>
<Animated.View style={{ position: 'absolute', top: titleTop }}>
<Text style={{ fontWeight: 'bold', fontSize: 26, paddingLeft: 10 }}>Iman Salehi</Text>
</Animated.View>
</Animated.View>
<ScrollView style={{ flex: 1 }}
scrollEventThrottle={16}
onScroll={Animated.event(
[{ nativeEvent: { contentOffset: { y: this.state.scrollY } } }]
)}>
<Animated.View style={{
height: profileImageHight,
width: profileImageHight,
borderRadius: PROFILE_IMAGE_MAX_HIGHT / 2,
borderColor: 'white',
borderWidth: 3,
overflow: 'hidden',
marginTop: profileImageMarginTop,
zIndex:0, //Look here <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
marginLeft: 10,
}}>
<Image source={require('./assets/avatar.jpg')} style={{ flex: 1, width: null, height: null}} />
</Animated.View>
<Text style={{ fontWeight: 'bold', fontSize: 26, paddingLeft: 10 }}>Iman Salehi</Text>
<View style={{ height: 1000 }}></View>
</ScrollView>
</View>
like you see above: there are two components which has zIndex. so taking one which has zIndex:1 on the other is expected but there is no change bout them in run time.

Try elevation with zIndex and absolute position.
Apply below style on component which you want to show on front layer
style={{ position: 'absolute', elevation: 100,zIndex:100, //other style }}
Let me know if still facing issue

Try using elevation, that might help you to differentiate between the views.

Adding react components to header based on the page

On all but two pages of my site I would like the header to include two buttons. How can I make the header aware of this so it includes the buttons when needed and doesn't for the other two pages. I'm using React and Gatsby.
Could I accomplish this by adding if statements to my component? If so I'm not sure how to move beyond this step.
const isHomepage = pathname == `/`
const isContact = pathname == `/contact/`
let styles = {}
if (isHomepage) {
}
} else if (isContact) {
} else {
}
This is my code for the header:
import React from 'react'
import Link from 'gatsby-link'
import colors from '../utils/colors'
const Header = ({ siteTitle }) => (
<div
style={{
background: colors.white,
marginBottom: '1.45rem',
borderBottom: '1px solid',
borderBottomColor: colors.green,
height: '3rem',
top: 0,
left: 0,
width: '100%',
position: 'fixed',
}}
>
<div
style={{
paddingLeft: 20,
paddingRight: 20,
marginLeft: 'auto',
marginRight: 'auto',
maxWidth: 960,
}}
>
<div
style={{
display: 'flex',
flexDirection: 'row',
alignItems: 'center',
height: 53,
}}>
<h3 style={{
margin: 0,
}}>
<Link
to="/"
style={{
color: colors.green,
textDecoration: 'none',
fontWeight: 450,
}}
>
{siteTitle}
</Link>
</h3>
</div>
</div>
</div>
)
export default Header

Use conditional rendering based on location.pathname
{['/path1', '/path2'].indexOf(location.pathname) === -1 && (
<button>1<button>
<button>2<button>
)}
import React from 'react'
import Link from 'gatsby-link'
import colors from '../utils/colors'
const Header = ({ siteTitle }) => (
<div
style={{
background: colors.white,
marginBottom: '1.45rem',
borderBottom: '1px solid',
borderBottomColor: colors.green,
height: '3rem',
top: 0,
left: 0,
width: '100%',
position: 'fixed',
}}
>
<div
style={{
paddingLeft: 20,
paddingRight: 20,
marginLeft: 'auto',
marginRight: 'auto',
maxWidth: 960,
}}
>
<div
style={{
display: 'flex',
flexDirection: 'row',
alignItems: 'center',
height: 53,
}}>
<h3 style={{
margin: 0,
}}>
<Link
to="/"
style={{
color: colors.green,
textDecoration: 'none',
fontWeight: 450,
}}
>
{siteTitle}
</Link>
{['/path1', '/path2'].indexOf(location.pathname) === -1 && (
<button>1<button>
<button>2<button>
)}
</h3>
</div>
</div>
</div>
)
export default Header