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How can I use className in component from styled-components in React?

NavStyles.js
import styled from 'styled-components';
export const Nav = styled.navwidth: 100%; ;
export const NavMenuMobile = styled.ul`
height: 80px;
.navbar_list_class {
font-size: 2rem;
background-color: red;
}
${props => props.navbar_list_props && `
font-size: 2rem;
background-color: gray;
`}
`;
Navbar.js
import React from 'react'
import {Nav, NavMenuMobile} from "./NavStyles";
const Navbar = () => {
return (
<Nav>
{/* work no problem */}
<NavMenuMobile navbar_list_props>Nav Bar props</NavMenuMobile>
{/* not work How to use..? */}
<NavMenuMobile className="navbar_list_class">Nav Bar class</NavMenuMobile>
</Nav>
)
}
export default Navbar

<Nav>
<NavMenuMobile className={navbar_list_props}>Nav Bar props</NavMenuMobile>
</Nav>
Try This

Looks like you are setting styles for the children within NavMenuMobile with the class "navbar_list_class".
Should work with &.navbar_list_class
export const NavMenuMobile = styled.ul`
height: 80px;
&.navbar_list_class {
font-size: 2rem;
background-color: red;
}
`;

How to redefine a style .tippy-tooltip in "react-tippy"

I want to use "react-tippy" for my project.
How can I override the styles .tippy-tooltip?
Me need to remove padding inside the tooltip.

Here is the Tool tip component I created for my use using react tippy and styled components. You can figure out from there how to customize it to your needs:
Tooltip.js
import React from 'react';
import 'tippy.js/dist/tippy.css';
import { TooltipText, StyledTippy } from './Tooltip.styled';
const Tooltip = ({ moveDown, moveRight, content, ...props }) => (
<StyledTippy
moveDown={moveDown}
moveRight={moveRight}
content={
<TooltipText small bold>
{content}
</TooltipText>
}
placement="bottom"
{...props}
>
{props.children}
</StyledTippy>
);
export default Tooltip;
Tooltip.styled.js
import styled from 'styled-components';
import Tippy from '#tippyjs/react';
export const TooltipText = styled.p`
font-weight: 500;
font-size: 10px;
line-height: 12px;
color: ${({ theme }) => theme.colors.tooltips.simpleText};
`;
export const StyledTippy = styled(Tippy)`
z-index: 5000;
margin-top: ${({ moveDown }) => (moveDown ? `${moveDown}px` : '0')};
margin-left: ${({ moveRight }) => (moveRight ? `${moveRight}px` : '0')};
background: ${({ theme }) => theme.colors.tooltips.simpleBackground};
height: 24px;
width: 110px;
display: flex;
align-items: center;
justify-content: center;
.tippy-arrow {
color: ${({ theme }) => theme.colors.tooltips.simpleBackground};
}
`;

Change styles of component when hovering sibling

I have a simple case where I want the box2 to change background to yellow, if the box1 was hovered.
code sample:
const Box = styled.div`
height: 200px;
width: 200px;
background: blue;
`;
const Box2 = styled.div`
height: 200px;
width: 200px;
background: green;
margin-top: 20px;
${Box}:hover {
background: yellow;
}
`;
in render:
<Box>Box 1</Box>
<Box2>Box 2</Box2>
Link to the code preview:
https://stackblitz.com/edit/react-rvhgov
Thanks!
Edit This one above doesnt seem to work, dont know why, it should work?

Depend on your render items you can do it with different approaches but as things we got here, you can use adjacent sibling combinator (+) or general sibling combinator (~). So all you have to do is to replace this
${Box}:hover {
background: yellow;
}
with
/* If you want to only select the next element sibling, you should replace ~ with + */
${Box}:hover ~ & {
background: yellow
}
Working Demo:
https://stackblitz.com/edit/select-next-sibling

You can try this:
import React, { Component, useState } from 'react';
import { render } from 'react-dom';
import Hello from './Hello';
import './style.css';
import styled, {css} from 'styled-components';
const Box = styled.div`
height: 200px;
width: 200px;
background: blue;
`;
const Box2 = styled.div`
height: 200px;
width: 200px;
background: green;
margin-top: 20px;
${props => props.hovered && css`
background: yellow;
`}
`;
export default function App() {
const [hovered, setHovered] = useState(false);
return (
<div className="App">
{'' + hovered}
<h1>Hello CodeSandbox</h1>
<h2>Start editing to see some magic happen!</h2>
<Box onMouseEnter={() => setHovered(true)} onMouseLeave={() => setHovered(false)}>Box 1</Box>
<Box2 hovered={hovered}>Box 2</Box2>
</div>
);
}
render(<App />, document.getElementById('root'));
With this approach, it doesn't matter are elements/components siblings or not. It will work for siblings but also when components are nested in different subtrees.

Pass props to styled-components

I am querying data for my react site using graphql from my CMS (prismic.io) in order to produce color themed pages. I want to pass a variable or props into my styled component to change the background color based on what is sent back from the CMS.
In the below example, my graphql query will return a HEX that has been inputted by the user, this would then be applied to buttons etc to theme that page.
The colour can and will change from page to page as the user will be selecting it within the CMS.
Any help would be appreciated. Code example below:
Props
props.data.case_study_color
Component
const ContactButton = styled.button `
background: #004655;
color: #fff;
font-size: 2rem;
padding: 10px;
`;

You could do the following.
const ContactButton = styled.button`
background: #004655;
color: ${props => props.color || '#fff'};
font-size: 2rem;
padding: 10px;
`;
See codesandbox example here.
This would be the component code:
.....component
const [color, setColor] = React.useState("#fff");
React.useEffect(() => {
fetch(URL).then(data => {
setColor(data.response);
});
}, []);
return (
<div className="App">
<ContactButton color={color}>White</ContactButton>
</div>
);

const ContactButton = styled.button `
background: ${props => props.caseStudyColor};
color: #fff;
font-size: 2rem;
padding: 10px;
`;
<ContactButton caseStudyColor={'#004655'} />

As my solution was slightly different but based on Paul's answer it might be useful for someone else.
Button Component
const ContactButton = styled.button`
background: ${props => props.themeColor || '#004655'};`
Color Component
const themeColor = props.data.case_study_color;
Button
<ContactButton themeColor={themeColor}>Get in touch</ContactButton>

Add styles to Styled Component custom Component in React Native

I have button.js:
import React from "react";
import styled from "styled-components";
const StyledButton = styled.TouchableOpacity`
border: 1px solid #fff;
border-radius: 10px;
padding-horizontal: 10px;
padding-vertical: 5px;
`;
const StyledButtonText = styled.Text`
color: #fff;
font-size: 12;
`;
export default ({ children }) => (
<StyledButton>
<StyledButtonText>{children.toUpperCase()}</StyledButtonText>
</StyledButton>
);
And its usage:
import React, { Component } from "react";
import styled from "styled-components";
import Button from "./button";
const StyledNavView = styled.View`
justify-content: flex-end;
flex-direction: row;
background: #000;
padding-horizontal: 10px;
padding-vertical: 10px;
`;
const StyledTodayButton = styled(Button)`
margin: 10px;
`;
export default class Nav extends Component {
render() {
return (
<StyledNavView>
<StyledTodayButton>Today</StyledTodayButton>
<Button>Previous</Button>
</StyledNavView>
);
}
}
Problem is, the margin I apply in StyledTodayButton is actually never applied. Have I misunderstood extending styles in Styled Components?

There are 2 ways to make it work:
extend button style:
const StyledTodayButton = Button.extend'margin: 10px'
pass prop to button:
const Button = styled.button'
/* ...your props */
margin: ${props => props.withMargin ? '10px' : '0px'};
and then call in render method you can invoke it with:
<Button withMargin {...restProps} />