Spinner - using styled-components

Spinner.js

import React from 'react';
import styled from 'styled-components';

const rotate = keyframes`
  100% {
    transform: rotate(360deg);
  }
`

const dash = keyframes`
  0% {
    stroke-dasharray: 1, 150;
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -35;
  }
  100% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -124;
  }
`

const StyledSpinner = styled.svg`
  animation: ${rotate} 2s linear infinite;
  width: 100px;
  height: 100px;

  & .path {
    stroke: white;
    stroke-linecap: round;
    animation: ${dash} 1.5s ease-in-out infinite;
  }
`

const Spinner = () =>
  <StyledSpinner viewBox="0 0 50 50">
    <circle
      className="path"
      cx="25"
      cy="25"
      r="20"
      fill="none"
      strokeWidth="4"
    />
  </StyledSpinner>

export default Spinner;