*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    display: flex;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    overflow: hidden;
}

#pdfViewer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.phone{
    display:none;
}

@media screen and (max-width: 600px) {
  .pc{
    display: none;
  }
  .phone{
    display: block;
  }
}