style.css

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
}

body {
  background: #fafafa;
}

h1,
h2,
h3 {
  margin: 0;
}

header {
  width: 100%;
  text-align: center;
}

h1 {
  font-size: 3.8rem;
  font-family: papyrus;
  letter-spacing: 2px;
  padding-top: 50px;
  text-shadow: 3px 3px 0 red, -1px -1px 0 red, 1px -1px 0 red, -1px 1px 0 red,
    1px 1px 0 red;
}

.wrapper {
  margin: 30px;
  padding: 30px;
  max-width: 580px;
  font-family: monospace;
  text-align: justify;
  font-size: 1.3rem;
  line-height: 1.5rem;
  margin: auto;
}

.wrapper span {
  font-style: italic;
  font-weight: bold;
}

.cursor {
  padding: 30px 30px 0;
  width: 100%;
  height: 400px;
  position: relative;
  font-family: monospace;
}

.box {
  width: 100%;
  height: 100%;
  border: 3px solid black;
  background: white;
  display: flex;
  flex-direction: column;
}

.info {
  width: 100%;
  background: linear-gradient(90deg, hotpink, #54b2f0);
}

.center {
  text-align: center;
  margin: 10px;
}

.name {
  font-weight: bold;
  width: 100%;
  border-bottom: 2px solid black;
  padding: 6px 8px;
  letter-spacing: 1.5px;
  color: white;
  display: flex;
  justify-content: space-between;
}

.name a {
  color: white;
  text-decoration: none;
}

.byline {
  padding: 6px 8px;
  font-style: italic;
  background: #f9f9f9;
  opacity: 0.7;
  border-bottom: 1px solid black;
}

.effect {
  height: 100%;
  position: relative;
}

.github-corner:hover .octo-arm {
  animation: octocat-wave 560ms ease-in-out;
}

@keyframes octocat-wave {
  0%,
  100% {
    transform: rotate(0);
  }
  20%,
  60% {
    transform: rotate(-25deg);
  }
  40%,
  80% {
    transform: rotate(10deg);
  }
}

@media (max-width: 500px) {

  .github-corner:hover .octo-arm {
    animation: none;
  }
  
  .github-corner .octo-arm {
    animation: octocat-wave 560ms ease-in-out;
  }
}