body {
  background-color: #Fefefd;
}
.center-box {
  margin: 0 auto;
  width: 100%;
  overflow: hidden;
  text-align: center;
}
header {
  background: url(../img/header.jpg) top center;
  background-size: cover;
  position: relative;
}
.header-text {
  color: white;
  padding: 80px 40px 120px 40px;
}
.header-text::before {
  position: absolute;
  content: "";
  display: block;
  border: solid 6px white;
  top: 10%;
  bottom: 10%;
  right: 10%;
  left: 10%;
  z-index: 0;
}
ul {
  width: 100%;
  overflow: hidden;
  background-color: #202f3f;
  display: flex;
  justify-content: center;
}
li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 25px;
    font-family: 'Lato';
    font-size: 26px;
    text-decoration: none;
}
.row {
  display: flex;
  align-items: center;
  position: relative;
}
.one-third {
  width: 33.33%;
}
.two-third {
  width: 66.66%;
}
img {
  width: 100%;
  display: block;
}
.image {
  position: relative;
  width: 100%;
  height: auto;
}
.image::before {
    content: "";
    top: 0;
    right: 0;
    bottom: 0;
    min-height: 100%;
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 20vw 17vw 20vw 0;
    border-color: transparent #fff transparent transparent;
    box-sizing: border-box;
}
.row:nth-of-type(even) .image:before {
    width: 100%;
    border-width: 17vw 0 20vw 17vw;
    border-color: transparent transparent transparent #fff;
}
 .row:nth-of-type(odd) .image:after {
    content: "";
    left: 0;
    bottom: 0;
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 17vw 16vw 17vw 0;
    border-color: transparent transparent #202f3f transparent;
    box-sizing: border-box;
    opacity: 0.2;
}
.row:nth-of-type(even) .image:after {
  content: "";
  right: 0;
  bottom: 0;
  position: absolute;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0 17vw 17vw;
  border-color: transparent transparent #202f3f transparent;
  opacity: 0.2;

}
h1 {
  font-family: 'Open Sans';
  font-size: 52px;
  text-transform: uppercase;
  padding: 30px;
}
h2 {
  font-family: 'Open Sans';
  font-size: 32px;
  padding: 25px;
}
h3 {
  font-family: 'Tangerine';
  font-size: 78px;
}
p {
  font-family: 'Lato';
  font-size: 16px;
  line-height: 1.4;
  padding: 20px;
}
.row:nth-of-type(even) .two-third {
    order: 2;
}
.one-third, .two-third {
    float: left;
    min-height: 1px;
}
.btn {
  -webkit-border-radius: 15px;
  -moz-border-radius: 15px;
  border-radius: 15px;
  -webkit-box-shadow: 0px 1px 3px #666666;
  -moz-box-shadow: 0px 1px 3px #666666;
  box-shadow: 0px 1px 3px #666666;
  font-family: 'Lato';
  color: #ffffff;
  font-size: 20px;
  background: #202f3f;
  padding: 10px 20px 10px 20px;
  text-decoration: none;
  display: inline-block;
  margin: 20px;
}
.btn:hover {
  background: #202f3f;
  background-image: -webkit-linear-gradient(top, #707a80, #3e454a);
  background-image: -moz-linear-gradient(top, #707a80, #3e454a);
  background-image: -ms-linear-gradient(top, #707a80, #3e454a);
  background-image: -o-linear-gradient(top, #707a80, #3e454a);
  background-image: linear-gradient(to bottom, #707a80, #3e454a);
  text-decoration: none;
}
footer {
  padding: 10px;
  background-color: #202f3f;
  color: white;
  text-align: center;
}
footer a {
  color: white;
}
@media only screen and (max-width: 990px) {
.row {
    display: block;
}
.two-third, .one-third {
    display: block;
    width: 100%;
    height: 100%;
    float: none;
    clear: both;
  }
  .image::before {
    display: none;
  }
  .image:after {
    display: none;
  }
}
@media only screen and (max-width: 792px) {
  li a { font-size: 18px}
  h1 {font-size: 26px}
  h2 {font-size: 20px;}
  h3 {font-size: 36px;}

}
@media only screen and (max-width: 504px) {
  ul { flex-direction: column;}
}