.marginbottom8 {
  margin-bottom: 8px;
}
body {
  background-color: #3498db;
}
body h2 {
  color: #ecf0f1;
}
li {
  list-style: none;
}
.container {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}
@media (min-width:768px)(max-width:1023px) {
  .container {
    max-width: 80%;
    background-color: yellow;
  }
}
@media (min-width:767px)(max-width:767px) {
  .container {
    max-width: 70%;
    background-color: red;
  }
}
header {
  padding: 24px;
}
header .profile-avatar {
  display: block;
  margin: 0 auto;
  border-radius: 50%;
  height: 100px;
}
.profile-bio {
  text-align: center;
}
.profile-bio-name {
  text-align: center;
  margin-bottom: 8px;
  color: #ecf0f1;
}
.profile-bio-subtitle {
  font-size: 16px;
  margin-bottom: 8px;
  color: #ecf0f1;
}
.profile-bio-description {
  margin-bottom: 8px;
  font-size: 14px;
  color: #ecf0f1;
}
nav {
  margin: 0 auto;
  max-width: 360px;
}
.social-list {
  display: flex;
  margin: 0 auto;
  justify-content: space-between;
  max-width: 240px;
}
.social-list li a {
  text-decoration: none;
}
.project-list {
  display: block;
  margin: 0 auto;
  max-width: 480px;
  text-align: center;
}
.project-list-item a {
  text-decoration: none;
  background-color: #16a085;
  padding: 16px 20px;
  display: block;
  color: #ecf0f1;
  margin-bottom: 16px;
  width: 100%;
  font-weight: bold;
  border-radius: 30px;
  border: 2px solid #ecf0f1;
  transition: all ease 0.5ms;
}
.project-list-item a:hover {
  background-color: #3498db;
}