aaa.css

body {
  width: 80vw;
  margin: 15vh auto;
  font-family: Avenir Next, AXIS Std, 'YuGothic', 'Yu Gothic', 'Hiragino Kaku Gothic Pro', 'Meiryo', sans-serif;;
}

a {
  color: #0288D1;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  position: relative;
}

h1 {
  font-size: 15vw;
  letter-spacing: -20px;
  margin-bottom: 0;
  line-height: .6;
  font-weight: 100;
}

h2 {
  color: #ccc;
  font-weight: 100;
  font-size: 10vw;
  line-height: .1;
  margin-top: 0px;
  position: relative;
  z-index: -1;
}

h2 + img {
  border-radius: 50%;
  border: 2px solid skyblue;
  position: absolute;
  right: 0px;
  top: -80px;
  width: 250px;
}

h3 {
  font-weight: 100;
  font-size: 7vw;
  margin: 0;
}

p {
  font-size: 20px;
}

ul, ol {
  margin: 10px 0;
}

li {
  background: #BBDEFB;
  padding-left: 20px;
  margin: 20px 0;
}

strong {
  color: red;
}

.contact {
  border: 0;
  display: flex;
  flex-direction: row;
}

.contact li {
  list-style-type: none;
  padding: 0;
  margin: 0 20px;
  flex: 1;
  text-align: center;
  background-color: transparent;
  transition: all 1s linear 0;
}

.contact li a {
  display: block;
  padding: 20px;
  color: #fff;
  background-color: #2196F3;
  border-radius: 40px;
  transition: all 1s linear 0;
}

.contact li a:hover {
  background-color: #03A9F4;
  text-decoration: none;
  border-radius: 40px;
}