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

html {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  background-color: white;
}

/*BASIC ELEMENT STYLING*/
header {
  background-color: #06D6A0;
  width: 100%;
  overflow: hidden;
  height: 60px;
}

main {
  max-width: 900px;
  margin: 0 auto;
}

img {
  width: 100%;
}

h3 {
  font-size: 22px;
  padding: 10px 0;
}

p {
  font-size: 19px;
  padding: 10px 0;
}

a {
  text-decoration: none;
  color: black;
}

/*HEADER*/
.logo {
  font-size: 18px;
  color: white;
  float:left;
  padding: 20px 0 20px 20px;
}

.navbar {
  position: absolute;
  right: 0;
  padding: 20px 20px 20px 0;
}

.navbar li {
  display: inline-block;
  font-size: 19px;
  padding: 0 5px;
}

/*WELCOME*/
.welcome {
  background-color: #26547C;
  overflow: hidden;
  color: white;
}

.welcome-img {
  width: 60%;
  float: left;
}

.welcome h2 {
  font-size: 38px;
  text-align: center;
  display: inline-block;
  width:40%;
  padding-top: 30px;
}

/*CATS*/
.cats {
  background-color: #FFD166;
}

/*PRODUCTS*/
.products, .cats, .about {
  padding: 40px 20px;
}

.products {
  background-color: #F2F2F2;
}

.product-container {
  padding: 0 5px;
}

.product-container li {
  display: inline-block;
  width: 33.33%;
  padding: 10px;
}

.products img {
  border: 3px solid black;
}

/*ABOUT*/
.about {
  background-color: #26547C;
}

.about h3 {
  color:#EF476F;
  float: left;
  width: 33.33%;
  text-align: center;
  overflow: hidden;
  padding-bottom: 40px;
}

.about p {
  clear: both;
  color: white;
}


/*FOOTER*/
footer {
  background-color: #06D6A0;
  text-align: right;
  padding: 15px 20px 15px 0;
  font-size: 19px;
}

/* BACK TO TOP BUTTON */
.back-top {
  color: salmon;
  float: right;
  font-size: 14px;
}

/*--------------------------------------------------------*/
/*RESPONSIVE DESIGN*/
/*--------------------------------------------------------*/
/*FOR MOBILE PHONES*/
@media only screen and (max-width: 550px) {
  /*HEADER*/
  header {
    height: 170px;
  }

  .logo {
    float: none;
    display: block;
    text-align: center;
    font-size: 30px;
    padding: 20px 0 0 0;
  }

  .navbar {
    position: inherit;
    padding: 0;
    text-align: center;
  }

  .navbar li {
    font-size: 16px;
    display: block;
    padding: 2.5px 0;
  }
  
  .back-top {
    font-size: 12px;
  }

  /*WELCOME*/
  .welcome {
    background-color: white;
    margin-bottom: 22px;
    text-align: center;
  }

  .welcome-img {
    width: 100%;
    clear: both;
  }

  .welcome h2 {
    display:inline-block;
    width: auto;
    color: black;
    font-size: 24px;
    border-bottom: 5px solid #EF476F;
    padding-top: 22px;
    padding-bottom: 5px;
  }

  /*RESIZE FONTS OF H3 AND PARAGRAPHS FOR EACH SECTION*/
  h3 {
    font-size: 19px;
  }

  p {
    font-size: 16px;
  }

  /*PRODUCTS - RESIZE IMAGES*/
  .product-container li {
    width: 100%;
    display: block;
    padding: 0;
  }

  .products img {
    border: none;
  }

  /*ABOUT*/
  .about h3 {
    padding-bottom: 20px;
  }

  /*FOOTER*/
  footer {
    font-size: 16px;
  }
}