浅谈styled-components的用法

import React from 'react';
import styled from 'styled-components';
import { render } from 'react-dom';
 
const Title = styled.h1`
    font-size: 1.5em;
    text-align: center;
    color: palevioletred;
`;
 
class App extends React.Component {
    render() {
        return (
            <Title>Hello world</Title>
        )
    }
}
 
render(
    <App />,
    document.getElementById('app')
);

const Button = styled.button`
  background: ${props => props.primary ? 'palevioletred' : 'white'};
  color: ${props => props.primary ? 'white' : 'palevioletred'};
  font-size: 1em;
  margin: 1em;
  padding: 0.25em 1em;
  border: 2px solid palevioletred;
  border-radius: 3px;
`;

render(
  <div>
    <Button>Normal</Button>
    <Button primary>Primary</Button>
  </div>
);

const Button = styled.button`
  color: palevioletred;
  font-size: 1em;
  margin: 1em;
  padding: 0.25em 1em;
  border: 2px solid palevioletred;
  border-radius: 3px;
`;

const TomatoButton = Button.extend`
  color: tomato;
  border-color: tomato;
`;

<Wrapper>
  <h4>Hello Word</h4>
  <div className="detail"></div>
</Wrapper>

const Password = styled.input.attrs({
  type: 'password',
})`
  color: palevioletred;
  font-size: 1em;
  border: 2px solid palevioletred;
  border-radius: 3px;
`;

const Button = styled.button.attrs({
  className: 'small',
})`
  background: black;
  color: white;
  cursor: pointer;
  margin: 1em;
  padding: 0.25em 1em;
  border: 2px solid black;
  border-radius: 3px;
`;

<button class="sc-gPEVay small gYllyG">
  Styled Components
</button>

import { keyframes } from 'styled-components';
const fadeIn = keyframes`
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
`;

const FadeInButton = styled.button`
  animation: 1s ${fadeIn} ease-out;
`;

const StyledDiv = styled(Row)`
  position: relative;
  height: 100%;
  .image img {
    width: 100%;
  }
  .content {
    min-height: 30em;
    overflow: auto;
  }
  .content h2 {
    font-size: 1.8em;
    color: black;
    margin-bottom: 1em;
  }
`;