@media (min-width: 641px) {
    #contents, .main {
      font-size: 14px !important;
    }
  }

  @media (min-width: 981px) {
    #wrapper {
        margin: 29px auto auto auto !important;
    }
  }

.main {
    margin: auto;
}

.main p {
    display: block;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
}

#main_cont_box {
    margin: 2% 0 2% 0;
}

.main img {
    width: 100%;
    margin: 0 auto;
}

#banner {
    width: 100%;
    padding: 4% 0 0 0;
    border-top: solid 2px #ddd;
}

.footer_nav_ban {
    padding: 0 2% 4%;
}

#wrapper h3 {
    margin-bottom: 0;
}