base.css

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
  -webkit-scroll-behavior: smooth;
}

body {
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-flow: column wrap;
  justify-content: center;
  align-items: center;
  font-size: 16px;
}
ul {
  list-style: none;
}

header {
  position: relative;
  width: 100%;
  display: flex;
  flex-flow: column wrap;
  justify-content: center;
  align-items: center;
  min-height: 30vh;
}
header h1,
header h2 {
  width: 100%;
  text-align: center;
}

header h1 {
  font-size: 3em;
}

header h2 {
  font-size: 2em;
}

section#intro {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  height: 500px;
}

h3 {
  text-transform: uppercase;
  font-size: 1.5em;
}
h3.intro {
  display: none;
  position: absolute;
  opacity: 0;
}
article.aboutme {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-flow: column;
  text-align:center;
  height: 90vh;
}