body {
  background-image: url("./images/background.jpg");
  background-repeat: repeat;
  background-size: cover;
}

header {
  text-align: center;
  width: 900px;
  height: 130px;
  margin: 0 auto;
  border: 2px solid #B2DFEE;
}

a {
  color: black;
  border-bottom: none;
  text-decoration: none;
}

main {
  padding-top: 15px;
  line-height: 25px;
}

.myself {
  text-align: center;
  width: 280px;
  height: 310px;
  margin: 0 auto;
  border: 1px solid black;
  background-color: rgba(255, 255, 255, 0.5);
  line-height: 1px;
  border-radius: 30px;
  opacity: 1;
}

.my-picture {
  width: 90px;
  height: 90px;
  padding-top: 25px;
  border-radius: 5px;
}

div.introduce {
  font-size: 10px;
  padding-top: 5px;
}

.works {
  text-align: center;
  width: 300px;
  height: 300px;
  margin: 0 auto;
  border: 1px solid black;
  background-color: rgba(255, 255, 255, 0.5);
  line-height: 3px;
  border-radius: 30px;
  opacity: 1;
}

.my-works {
  width: 60px;
  height: 60px;
}

.line {
  text-align: center;
  width: 300px;
  height: 200px;
  margin: 0 auto;
  border: 1px solid black;
  background-color: rgba(255, 255, 255, 0.5);
  line-height: 2px;
  border-radius: 30px;
  opacity: 1;
}

.other {
  text-align: center;
  width: 900px;
  height: 200px;
  margin: 0 auto;
  border: 1px solid black;
  background-color: rgba(255, 255, 255, 0.5);
  line-height: 2px;
  border-radius: 30px;
  opacity: 1;
  padding-top:30px
}

footer {
  padding-top: 480px;
}