* {
  margin: 0;
  border: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Open San', sans-serif;
}
a {
    color: #4d84e3;
  }
p {
    color: black;
    font-size: 20px;
    font-weight: 700;
  }
h1 {
    color: black;
    font-size: 33px;
    letter-spacing: 0.5px;
  }
.按鈕 button {
  width: 10%;
  height: 45px;
  cursor: pointer;
  font-size: 15px;
  color: #000;
  font-weight: 600;
  border-radius: 30px;
}

.按鈕:nth-child(1) button {
  background-color: #7be0ff;
}
.按鈕:nth-child(2) button {
  background-color: #d7d7d7;
}
.按鈕 button:hover {
  background: grey;
  transition: 0.5s;
  color: aliceblue;
}

img {
    height: 100px;
    border-radius: 8px;
    filter: drop-shadow(0 8px 8px);
    transition: .2s;
  }
body{
  text-align: center
}