body {
  margin: 0;
}

#fake-phone {
  border: 1px solid #000;
  width: 393px;
  margin: 0 auto;
  border-radius: 40px;
  margin-top: 2rem;
  overflow: clip;
  min-height: 800px;
}

@media screen and (max-width: 600px) {
  #fake-phone {
    border: 0;
    margin: 0;
    width: 100%;
    margin-top: 0;
    border-radius: 0px;
  }
}

#header {
  border: 1px solid red;
}

#content {
  /* min-height: 600px; */
}

#main-menu {
border: 1px solid green;
    bottom: 0px;
    display: block;
    width: 393px;
    min-height: 70px;
    background-color: #fff;
    position: fixed;
    padding: 10px 0px 0px 0px;
}

@media screen and (max-width: 475px) {
  #main-menu {
    width: 100%;
  }
  }

#main-menu img {
  width: 30px;
}
#main-menu ul {
  display: flex;
  margin: 0;
  padding: 0;
}

#main-menu li {
  display: flex;
  width: 25%;
  flex-direction: column;
  align-items: center;
  padding: 5px;
}