message: Add swiper.css
diff: <meta property="og:image"
  content="https://screenshots.wpmix.net/chrome_2019-03-28_18-55-506746c4c5-44e6-4bb5-89cb-52ce8fabcedf.png">
  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
  + <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/Swiper/4.5.1/css/swiper.min.css" integrity="sha256-DBYdrj7BxKM3slMeqBVWX2otx7x4eqoHRJCsSDJ0Nxw=" crossorigin="anonymous" />
  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.1.0/css/all.css"
  integrity="sha384-lKuwvrZot6UHsBSfcMvOkWwlCMgc0TaWr+30HWe3a4ltaBwTZhyTEggF5tJv8tbt" crossorigin="anonymous">
  