@import url('https://fonts.googleapis.com/css?family=Roboto:400,700&display=swap');
body {
  font-family: 'Roboto', sans-serif;
  font-size: 15px;
  background-color: #eee;
  margin: 0;
}
header {
  background-color: #ddd;
  padding: 10px;
  border-bottom: 1px solid #ccc;
}
header h1 {
  text-align: center;
}
a {
  color: #000;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
ul,
li {
  margin: 0;
  padding: 0;
  list-style: none;
}
ul {
  display: flex;
  justify-content: center;
  align-items: center;
}
li {
  padding: 10px;
}
.warning {
  border: 2px solid #5555ff;
  background-color: #0000ff;
  color: #fff;
  padding: 10px 20px;
  border-radius: 5px;
}
.post {
  width: 300px;
  display: inline-block;
  box-shadow: 0px 0px 5px #999;
  padding: 10px;
  margin: 20px;
  border-radius: 5px;
  overflow: hidden;
}

.post img {
  max-width: 100%;
}

form {
  margin: 20px;
}
label {
  display: inline-block;
  margin: 5px 0;
}
input,
textarea {
  display: block;
  padding: 10px 15px;
  border: 2px solid #ccc;
  font-size: 16px;
  outline: 0;
  resize: none;
  margin-top: 10px;
  width: 400px;
}
textarea {
  height: 200px;
}
input[type='submit']:hover {
  background-color: #eee;
  cursor: pointer;
}
.tags {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 10px;
}
.tags .tag {
  padding: 10px;
}
.tag.selected a {
  color: #ff0000;
}