body {
  font-family: 'Istok Web', sans-serif;
  font-weight: 900;
  padding-top: 100px;
  margin: 0;
  width: 100%;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  padding-top: 0.25%;
  height: 6%;
  width: 100%;
  background-color: rgb(255, 102, 0);
  z-index: 1000;
  transition: border-bottom 0.3s ease;
}

header.scrolled {
  border-bottom: 2px solid lightgray;
}

.header {
  width: 60%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

content {
  width: 60%;
  margin: 0 auto;
  justify-content: space-between;
text-align: center;
}

footer {
  position: static;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 900px;
  background-color: rgb(255, 102, 0);
  z-index: 1000;
}