@charset "UTF-8";

/* =========================================================
　　Flex Layout 2 column
========================================================= */
#main {
  margin-top: 10px;
  padding: 20px;
  border: 1px solid #858585;
  border-radius: 6px;
  background-color: #fff;
  box-shadow: 0 2px 2px -2px #000;
}

#wrapper {
  gap: 20px;
}

#menu {
  flex-basis: 220px;
}

#content {
  width: calc(100% - 240px);
}

#menu .piece:not(:last-child) {
  margin-bottom: 20px;
}

@media only screen and (max-width: 959px) {

  #menu {
    order: 2;
    flex-basis: 100%;
  }

  #content {
    order: 1;
    width: 100%;
  }

  .recent #content {
    flex-basis: calc(100% - 40px);
  }
}