* {
  box-sizing: border-box;
}

body {
  background-color: #e5e5e5;
  font-family: sans-serif;
  margin: 0;
}

nav {
  background-color: #fff;
  padding: 16px;
  width: 100%;
}

nav a {
  background-color: #f5f5f5;
  border: 1px solid #e5e5e5;
  border-radius: 3px;
  display: inline-block;
  padding: 8px 16px;
}

nav form {
  display: inline-block;
}

nav input {
  padding: 8px;
}
nav input[type="submit"] {
  padding: 8px 16px;
}

section {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  margin: 0;
}

article {
  padding: 16px;
}

.border {
  background-color: #fff;
  border-radius: 3px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  margin: 0;
  max-width: 300px;
  padding: 0;
}

.image-box {
  background-color: #f5f5f5;
  border-radius: 3px 3px 0 0;
  max-width: 100%;
}

img,
video {
  border-radius: 3px 3px 0 0;
  display: block;
  width: 100%;
}

.metadata {
  padding: 8px 16px;
}

.field {
  padding: 4px 0;
}

h4 {
  font-size: 14px;
  margin: 0;
}

p {
  font-size: 12px;
  margin: 0;
}

p.hex {
  word-wrap: break-word;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

li {
  font-size: 12px;
}