* {
  font-family: "Raleway", sans-serif, 微軟正黑體;
  text-decoration: none;
}

html,
body {
  padding: 0;
  margin: 0;
}

html {
  width: 100%;
  height: 100%;
}

body {
  width: 100%;
  height: 100%;
  padding: 40px;
  margin: 0;
  background-color: #e0e0e2;
  box-sizing: border-box; /* box-sizing => border-box屬性長寬包含了div的padding以及border */
  overflow-x: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}
p {
  letter-spacing: 1px;
  line-height: 22px;
  padding: 0; /* 將文字的padding,margin改成0 */
  margin: 0;
  color: #666;
  font-size: 10px;
}

.namecard {
  width: 400px;
  height: 250px;
  padding: 25px;
  margin: auto;
  position: relative;
  background: linear-gradient(#f2f2f2, #eee);
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
  font-weight: bold;
  /* --------------------------------------------------- */
  transition: all 0.5s; /* transition 教課時記得寫完動畫再加上此屬性*/
}

.namecard .name {
  font-size: 30px;
  font-weight: bold;
  margin-left: -3px;
  color: #36b9c1;
}

.namecard .position {
  color: #36b9c1;
}

.namecard .intro {
  padding-right: 150px;
  /* 將intro推窄 */
}



.wave {
  width: 700px;
  height: 700px;
  opacity: 0.4;
  position: absolute;
  left: 0;
  background:#36b9c1;
  border-radius: 40%;
  /* transform-origin: 50% 48%; */
  transition: left 2s;
  animation: drift 6000ms infinite linear;
  margin-left: 280px;
}
.wave.-three {
  animation: drift 7000ms infinite linear;
  margin-left: 270px;
}

.wave.-two {
  animation: drift 10000ms infinite linear;
  background-color: yellow;
  opacity: 0.1;
  margin-left: 260px;
}

.wave.right {
  margin-top: -250px;
}

@keyframes drift {
  from {
    transform: rotate(0deg);
  }
  from {
    transform: rotate(360deg);
  }
}

.namecard:hover {
  transform: translate3d(-5px, -5px, 0);
  box-shadow: 5px 5px 30px rgba(0, 0, 0, 0.3);
  /* 滑鼠碰觸時讓卡片向左上飄移 */
}

.namecard:hover .wave.right {
  left: 70px;
}