Answers for "dynamic styling with styled components"

create global styles in styled components

import { createGlobalStyle } from 'styled-components'

const GlobalStyle = createGlobalStyle`
  body {
    color: ${props => (props.whiteColor ? 'white' : 'black')};
  }
`

// later in your app

<React.Fragment>
  <GlobalStyle whiteColor />
  <Navigation /> {/* example of other top-level stuff */}
</React.Fragment>import { createGlobalStyle } from 'styled-components'
const GlobalStyle = createGlobalStyle`  body {    color: ${props => (props.whiteColor ? 'white' : 'black')};  }`
// later in your app
<React.Fragment>  <GlobalStyle whiteColor />  <Navigation /> {/* example of other top-level stuff */}</React.Fragment>
/**
 * Reset the text fill color so that placeholder is visible
 */
.npm__react-simple-code-editor__textarea:empty {
  -webkit-text-fill-color: inherit !important;
}

/**
 * Hack to apply on some CSS on IE10 and IE11
 */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
  /**
    * IE doesn't support '-webkit-text-fill-color'
    * So we use 'color: transparent' to make the text transparent on IE
    * Unlike other browsers, it doesn't affect caret color in IE
    */
  .npm__react-simple-code-editor__textarea {
    color: transparent !important;
  }

  .npm__react-simple-code-editor__textarea::selection {
    background-color: #accef7 !important;
    color: transparent !important;
  }
}

styled-components example referring to other component

const Link = styled.a`
  display: flex;
  align-items: center;
  padding: 5px 10px;
  background: papayawhip;
  color: palevioletred;
`;

const Icon = styled.svg`
  flex: none;
  transition: fill 0.25s;
  width: 48px;
  height: 48px;

  ${Link}:hover & {
    fill: rebeccapurple;
  }
`;

const Label = styled.span`
  display: flex;
  align-items: center;
  line-height: 1.2;

  &::before {
    content: '◀';
    margin: 0 10px;
  }
`;

render(
  <Link href="#">
    <Icon viewBox="0 0 20 20">
      <path d="M10 15h8c1 0 2-1 2-2V3c0-1-1-2-2-2H2C1 1 0 2 0 3v10c0 1 1 2 2 2h4v4l4-4zM5 7h2v2H5V7zm4 0h2v2H9V7zm4 0h2v2h-2V7z"/>
    </Icon>
    <Label>Hovering my parent changes my style!</Label>
  </Link>
);const Link = styled.a`  display: flex;  align-items: center;  padding: 5px 10px;  background: papayawhip;  color: palevioletred;`;
const Icon = styled.svg`  flex: none;  transition: fill 0.25s;  width: 48px;  height: 48px;
  ${Link}:hover & {    fill: rebeccapurple;  }`;
const Label = styled.span`  display: flex;  align-items: center;  line-height: 1.2;
  &::before {    content: '◀';    margin: 0 10px;  }`;
render(  <Link href="#">    <Icon viewBox="0 0 20 20">      <path d="M10 15h8c1 0 2-1 2-2V3c0-1-1-2-2-2H2C1 1 0 2 0 3v10c0 1 1 2 2 2h4v4l4-4zM5 7h2v2H5V7zm4 0h2v2H9V7zm4 0h2v2h-2V7z"/>    </Icon>    <Label>Hovering my parent changes my style!</Label>  </Link>);
/**
 * Reset the text fill color so that placeholder is visible
 */
.npm__react-simple-code-editor__textarea:empty {
  -webkit-text-fill-color: inherit !important;
}

/**
 * Hack to apply on some CSS on IE10 and IE11
 */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
  /**
    * IE doesn't support '-webkit-text-fill-color'
    * So we use 'color: transparent' to make the text transparent on IE
    * Unlike other browsers, it doesn't affect caret color in IE
    */
  .npm__react-simple-code-editor__textarea {
    color: transparent !important;
  }

  .npm__react-simple-code-editor__textarea::selection {
    background-color: #accef7 !important;
    color: transparent !important;
  }
}
Hovering my parent changes my style!