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

.page {
  display: flex;
  flex-wrap: wrap;
}

.section {
  width: 100%;
  height: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.menu {
  background-color: #5995DA;
  height: 80px;
}

.header {
  background-color: #B2D6FF;
}

.content {
  background-color: #EAEDF0;
  height: 600px;
}

.sign-up {
  background-color: #D6E9FE;
}

.feature-1 {
  background-color: #F5CF8E;
}

.feature-2 {
  background-color: #F09A9D;
}

.feature-3 {
  background-color: #C8C6FA;
}

/* Mobile Styles */
@media only screen and (max-width: 400px){
  body {
    background-color: #F09A9D; /* Red */
  }
}

/* Tablet Styles */
@media only screen and (min-width: 401px) and (max-width: 960px) {
  body{
    background-color: #F5CF8E;
  }

  .sign-up, .feature-1, .feature-2, .feature-3 {
    width: 50%;
  }
}

/* Desktop Styles */
@media only screen and (min-width: 960px){
  body{
    background-color: #B2D6FF;
  }

  .page{
    width: 960px;
    margin-left: auto;
    margin-right: auto;
  }

  .feature-1, .feature-2, .feature-3 {
    width: 33.3%;
  }

  .header{
    height: 400px;
  }

  .sign-up{
    height: 200px;
    order: 1;
  }

  .content{
    order: 2;
  }
}