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How to add styles to a React component? [duplicate]

Currently I'm using react.js and I'm trying to get two div's to be side by side.
Currently I'm trying to
<div id="sidebar" style = "display:inline-block;" >
<script src="build/sidebar.js"></script>
</div>
<div id="map-canvas" style="display: inline-block; width: 20%; height: 50%; "></div>
with sidebar.js as the where react is stored. This unfortunately doesnt work however as it just moves map-canvas to the side while sidebar isn't to the left of it; its on top. I've tried many various combinations w/ float as well and none of them seem to work
Another option is to edit the sidebar.js code where I currently have
return <div>
<input type="text" value={this.state.searchString} onChange={this.handleChange} placeholder="Type here" />
<ul>
{ libraries.map(function(l){
return <li>{l.name} </li>
}) }
</ul>
</div>;
in which I try doing return <div style ="display: inline-block;">
However, in this case the generated html doesnt show up at all. I'm perplex to what I should try but react seems like it doesnt want to play nice with other div elements.

That's because in React, the style prop takes an object instead of a semicolon-separated string.
<div id="sidebar" style={{display : 'inline-block'}} >
<script src="build/sidebar.js"></script>
</div>
<div id="map-canvas" style={{display: 'inline-block', width: '20%', height: '50%'}}>
</div>
Edit:
So this:
return <div style="display: inline-block;">
Would become this:
return <div style={{display: 'inline-block'}}>

const styles = {
container: {
backgroundColor: '#ff9900',
...
...
textAlign: 'center'
}
}
export default class App extends React.Component {
render() {
return(
<div className="container" style={styles.container}>
// your other codes here...
</div>
);
}
}

Add svg image as icon for Input of Semantic UI

I'm using Input from Semantic UI in order to create a search input:
import React from 'react';
import { Input } from 'semantic-ui-react';
export default ({ placeholder, onChange }) => {
return (
<Input
icon="search"
icon={<img src={searchIcon} />}
iconPosition="left"
placeholder={placeholder}
onChange={onChange}
/>
);
};
It works and looks good.
The problem is that I need to change its icon with an svg image. So the svg is imported in the file and used like this:
import React from 'react';
import { Input } from 'semantic-ui-react';
import searchIcon from '../../assets/icons/searchIcon.svg';
export default ({ placeholder, onChange }) => {
return (
<Input
icon={<img src={searchIcon} />}
iconPosition="left"
placeholder={placeholder}
onChange={onChange}
/>
);
};
The problem is that it puts the icon outside of the input and on the right side of it.
It should be inside the input and on the left part.
There were no styling changes after the svg was added, why isn't it in the same position as the original icon?

Most likely semantic-ui adding special styles when we add some icon by attribute "icon". Semantic-ui-react doesn't support custom icons. :,(
In the type declaration we can read:
/** Optional Icon to display inside the Input. */icon?: any | SemanticShorthandItem<InputProps>
My proposition: add some styles to CSS, like me in the sandbox
.input {
position: relative;
width: fit-content;
display: flex;
justify-content: center;
align-items: center;
}
img {
position: absolute;
right: 5px;
width: 10px;
}

I got it working by passing a custom component where the svg image is wrapped by an i tag that has a an icon class:
const CustomIcon = (
<i className="icon">
<img width={38} height={38} src={searchIcon} />
</i>
);
const App = () => {
return (
<Input icon={CustomIcon} iconPosition="left" placeholder="placeholder" />
);
};
The benefit to this approach is that you can change the iconPosition without it breaking the styling with this approach.
To give more context the icon getting displayed at the right position is due to the styles applied to this selector: .ui.icon.input>i.icon. Because it expects an i tag the styles won't be applied if you don't wrap the image between i tags.

Filter issue while using Search/Filter logic - React Native

I am struggling with my React Native App!!!!
I have a simple Flatlist.
I have a TextInput that has a filter option.
Click inside the TextInput. A dropdown of filter appears.
Click on that Filter it appears inside the TextInput.
Need some help in styling this!!! It should look somewhat like this. If not to this extent at least a box around it is fine.
I tried it with a Button - React Native elements. It's so so so frustrating. I cannot use any 3rd party libraries (company policy).
TextInput Code:
<Icon type='materialicons' name='search' /> // search icon
<Button icon={<Icon name="check"/>}. //my attempt to create a button around the filter
type='clear' title ={val}
onPress={()=>{this.handleFilterIcon(false); this.setFilt(false)}}/>
<TextInput // Text Input
value={value}
placeholder='Search Here...'
onChangeText={(text)=>{this.handleSearch(text, true);this.renderDropDown(false)}}
onTouchStart={()=>{this.setTempNotifications();this.renderDropDown(true)}}
style={{ height: 40, flex: 1}}
autoCapitalize='none'
selectTextOnFocus={true}
label='input'
/>
<Icon type='materialicons' name='cancel' onPress={()=>{} /> // Clear Icon
<Button title='Cancel'
buttonStyle={{backgroundColor:'#D3D3D3', borderColor: 'grey', borderRadius: 6 , borderWidth: 1, height: 40}}
onPress={()=>{} /> // Cancel button
Anyone please tell me the most efficient way to do this!!!

The only way I'm seeing is, since you don't have to use third party libraries is this:
Create a an empty label next to the input. Wrap these two with a div with position:relative
As soon as input is entered, put the same text in this label. Customise this label with styling: position:absolute;background:grey...
Just to give you some idea, here's an implementation in JQuery. You have to take this forward and ask specific question where you're struggling.
function inputChange(val){
$('label').text(val);
$('input').val("");
}
label{
border:1px solid;
border-radius: 5px;
position: absolute;
background: grey;
left:2px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<input type="text" onchange="inputChange(this.value)"/>
<label></label>
</div>
In React the same implementation could look something like this. You can create a file with this implementation, import in your App.js and see. Take this idea fowrward and change the styling and behaviours as per the need.
import React, { Component } from 'react';
class CustomInputTextstyling extends Component {
constructor(props) {
super(props);
this.state ={
inputText: ""
}
}
handleInputChange(e){
this.setState({inputText: e.target.value});
}
render() {
const wrapperDiv = {
position: 'relative'
}
const label = {
border:'1px solid',
borderRadius: '5px',
position: 'absolute',
background: 'grey',
left:'2px'
}
return (
<div style={wrapperDiv}>
<input type = "text" onBlur = {this.handleInputChange.bind(this)}></input>
<label style={label}>{this.state.inputText}</label>
</div>
);
}
}
export default CustomInputTextstyling;

Styling a nested styled-component from an outer one

Using styled-components, I am trying to style a nested <Input /> component that I have created, which is being used within a different component that has a dropdown appear when typing. I need to add padding-left: 3rem to this nested input but I cannot access it from the component <Dropdown />.
<Dropdown
options={options}
/>
The above is imported where I need it. I need to access the below input from the above <Dropdown />.
<div>
<Input {...props}/> // I need to edit the padding in this component
// rendered input unique to this new component would go here
</div>
The above <Input /> is imported from another component which is used in all instances where I require an input.
export const Dropdown = styled(DropDown)`
padding-left: 3rem !important;
`;
The component works fine but this fails to affect the inner padding of the Input that I need to target.
What do I do?

From what you've said, I'd suggest that the dependency of padding the Input component is with your Dropdown (which you seem to realise already).
Therefore you'd be better off having that "unqiue" styling coupled with your Dropdown component via a wrapping styled component within it.
The following example is crude (and by no means complete or working), but hopefully it illustrates how the ownership of the padding-left should be within the Dropdown and not a sporadic styled component floating some where else in your code base.
./Input/Input.jsx
const Input = ({ value }) => (
<input value={value} />
);
./Dropdown/styled.js
const InputWrapper = styled.div`
position: relative;
padding-left: 3rem !important; /* Your padding */
`;
const Icon = styled.div`
position: absolute;
top: 0;
left: 0;
width: 3rem;
height: 3rem;
background: blue;
`;
const Menu = styled.ul`/* whatever */`;
./Dropdown/Dropdown.jsx
import Input from '...';
import { InputWrapper, Icon, Menu } from './styled';
const Dropdown = ({ options }) => (
<div>
<InputWrapper>
<Icon />
<Input value={'bleh'} />
</InputWrapper>
<Menu>{options}</Menu>
</div>
);
This setup will promote reusable self-contained components.

Figured out the solution below:
export const StyledInput = styled.div`
&& #id-for-input { // specifically on the <Input />
padding-left: 3rem !important;
}
`;
<StyledInput>
<Dropdown />
</StyledInput>

:focus issues with React

I'm relatively new with ReactJS and I'm trying to implement a small form that contains an input text field and a search button. I'm using the :focus pseudo-selector on the input field so when the user enters information it increases the width to 2000% and when the element loses focus it goes back to width:130%.
The problem I'm having is when I click my search button for the first time the input field shrinks back to the original position but it doesn't do the search until I click it for the second time. If I type something and then click somewhere else to loose focus it works like a charm.
Here's my code:
import React from 'react'
import Header from '../base/header'
import axios from 'axios'
import SearchResults from './searchResults'
import ReactCSSTransitionGroup from 'react-addons-css-transition-group';
import Radium from 'radium';
class Search extends React.Component {
constructor(props) {
super(props)
this.state = {
searchTerm: "",
searchResultsList: ""
}
this.handleChange = this.handleChange.bind(this);
this.handleSubmit = this.handleSubmit.bind(this);
this.handleCallback = this.handleCallback.bind(this);
}
handleCallback() {
console.log("calling handleSubmit");
}
handleSubmit() {
var that = this
event.preventDefault();
axios.post('http://localhost:3000/users/findusers', {
searchTerm: this.state.searchTerm
}).then(function (response) {
console.log("data sent");
that.setState({searchResultsList: response.data})
}).catch(function (error) {
console.log(error);
});
}
handleChange(e) {
this.setState({searchTerm: e.target.value}, () => {
console.log(this.state.searchTerm);
});
}
render() {
return (
<div>
<Header/>
<form onSubmit={this.handleSubmit}>
<div>
<ReactCSSTransitionGroup
transitionName="search-input"
transitionAppear={true}
transitionAppearTimeout={500}
transitionEnter={false}
transitionLeave={false}>
<input
type="text"
style={styles.inputStyle}
value={this.state.searchTerm}
onChange={this.handleChange}
placeholder="Find Friends..."
/>
{/*<img onClick={() => this.handleSubmit()} */}
<img src="/icons/svg/magnifying-glass.svg"
alt="Search" className="searchIcon"
onClick={() => this.handleCallback()}
/>
</ReactCSSTransitionGroup>
</div>
</form>
<div className="container-fluid">
<div className="row">
<div className="col-md-3">left</div>
{/* Main Area */}
<div className="col-md-6">
<SearchResults
searchResultsList={this.state.searchResultsList}
/>
</div>
<div className="col-md-3">right</div>
</div>
</div>
</div>
)
}
}
const styles = {
inputStyle: {
marginTop: 5,
marginLeft: 20,
width: 130,
WebkitTransition: 'width 0.4s easeInOut',
msTransition: 'width 0.4s easeInOut',
':focus': {
width: '2000%'
}
}
};
export default Radium(Search)
I originally had the code in a separate CSS file and decided to make it inline to see if there was any difference. I tried creating different functions to see if there was any difference but is still behaving the same.
I would really appreciate any help!

In regards to the width changing when clicking the magnifying glass. I believe it is because the :focus property is on the input and not the div containing the input and img.
I would recommend using the :focus-within property on the parent div. Here is an example of divs with both properties.
#div1:focus-within > input {
width: 300px;
}
#div2 > input:focus {
width: 300px;
}
<div id="div1">
<input type="text"/>
<button>Search</button>
</div>
<div id="div2">
<input type="text"/>
<button>Search</button>
</div>
This should solve the focusing issue.
Not sure why your magnifying glass image works so strangely. When reading the code it seems that clicking the image calls handleCallback() which is only logging not submitting.
Not sure if this helps but I would recommend using a button or input element for submission. The button would have type="submit" with the magnifying glass image as the child. The input would have type="submit" value="" and set the CSS background-image: to the magnifying glass.