html {
  font-size: 50%;
}

header .menu-logo img {
  width: 16px;
  height: 16px;
}

.about img {
  width: 128px;
  height: 128px;
}

@media (max-width: 666px) {
  nav {
    display: none;
  }

  .one,
  .two,
  .three {
    background-color: #fff;
    height: 5px;
    width: 100%;
    margin: 6px auto;

    transition-duration: 0.3s;
  }

  .menu-toggle {
    width: 40px;
    height: 30px;
    margin-right: 20px;
  }

  .menu-section.on a {
    font-size: 20px;
  }
  .menu-section.on {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 40vh;
    background-color: #03003f;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .infos.on {
    padding-top: 150px;
  }

  .menu-section.on nav {
    display: block;
  }

  .menu-section.on .menu-toggle {
    position: absolute;
    right: 25px;
    top: 15px;
  }

  .menu-section.on .menu-toggle .one {
    transform: rotate(45deg) translate(7px, 7px);
  }

  .menu-section.on .menu-toggle .two {
    opacity: 0;
  }

  .menu-section.on .menu-toggle .three {
    transform: rotate(-45deg) translate(8px, -9px);
  }

  .menu-section.on nav ul {
    text-align: center;
    display: block;
  }
  . .menu-section.on nav ul a {
    transition-duration: 0.5s;
    font-size: 3rem;
    line-height: 4rem;
    display: block;
  }
}

@media (max-width: 320px) {
  #form h3 {
    font-size: 2rem;
  }
  .footer img {
    padding: 5px;
    width: 32px;
    height: 32px;
  }
  .about img {
    width: 64px;
    height: 64px;
  }
  .about td {
    font-size: 1.5rem;
    padding: 0px;
  }
}

@media (max-width: 391px) {
  .about td {
    font-size: 1.5rem;
  }
}

@media (max-width: 270px) {
  .menu-logo {
    display: grid;
  }
}