supergeneric.css

html,
body {
  font-family: "Arial", sans-serif;
  margin: 0 auto;
  padding: 40px 0;
  max-width: 800px;
  line-height: 1.6;
  font-size: 18px;
  color: #444;
}

* {
  box-sizing: border-box;
  transition: all 300ms;
  background-size: cover;
}

table tr:nth-child(even) {
  background-color: #eee;
}

table tr:nth-child(odd) {
  background-color: #fff;
}

table th {
  color: white;
  background-color: black;
}

input {
  display: inline-block;
  height: 2.75em;
  line-height: 2.7em;
  padding: 0 1.5em 0 1.5em;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  border: solid 1px #dee0e3;
  white-space: nowrap;
}

input:focus,
select:focus,
textarea:focus,
button:focus {
  /*hides blue border on chrome, not recommended for accessibility or smt like that*/
  outline: none;
}

input[type="submit"],
a .button {
  display: inline-block;
  height: 2.75em;
  line-height: 2.7em;
  padding: 0 1.5em 0 1.5em;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  border: solid 1px #dee0e3;
  white-space: nowrap;
}

a {
  text-decoration: none;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

img {
  max-width: 100%;
  border-radius: 5px;
  box-shadow: 2px 2px 4px #999;
}

pre {
  white-space: pre-wrap;
}