html {
  height: 100%;
}

body {
  margin: 0px;
  height: 100%;
  background: #ECECEC;
  color: #878787;
  font-family: 'Noto Sans', sans-serif;
}

a {
  text-decoration: none;
  color: #E6E6E6;
}

a:hover {
  color: #FFFFFF;
}

header {
  background: #467977;
  width: 100%;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 15px;
  color: #E6E6E6;
  position: fixed;
  top: 0;
  left: 0;
}

#navigation-avatar {
  border-radius: 80%;
  height: auto;
  width: 80px;
  border: 2px solid #356361;
  float: left;
}

#navigation-title {
  font-size: 26px;
  padding: 20px;
}

#navigation-list {
  padding: 20px;
  margin: 0px;
  list-style-type: none;
}

#navigation-list li {
  display: inline;
  margin-left: 30px;
}

#navigation-list li:first-child {
  margin-left: 0px;
}

#main {
  margin: auto;
  max-width: 1000px;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 80px 0px 40px 0px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

.content {
  background: #FFFFFF;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
  margin: 30px 30px 0px 30px;
  padding: 20px;
  text-align: center;
  height: 100%;
}

.content:last-child {
  margin: 30px;
}

.content h1 {
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.10);
  -webkit-box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.10);
  -moz-box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.10);
  padding-bottom: 10px;
  margin: 0px 40px;
}

footer {
  width: 100%;
  height: 40px;
  bottom: 0px;
  left: 0px;
  position: fixed;
  background: #ECECEC;
}

footer hr {
  border: 0;
  height: 1px;
  background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0));
}

footer a {
  color: #878787;
}

footer a:hover {
  color: #B5B5B5;
}

#footer-content {
  margin: auto;
  max-width: 1000px;
  display: flex;
  align-items: center;
  font-size: 14px;
  justify-content: space-between;
  padding: 0px 30px;
}

@media screen and (max-width:600px) {
  header {
    flex-direction: column;
  }

  #navigation-title {
    padding: 10px 0px 0px 0px;
  }

  #navigation-list {
    padding: 10px;
  }
}

@media screen and (max-width:330px) {
  #navigation-list li {
    margin-left: 10px;
  }
}