@charset "UTF-8";
@import url(reset.css);
.happy {
  width: 1000xp;
  height: 800px;
  border: 4px solid pink;
}

.con {
  width: 500px;
  height: 1000px;
  background-color: lime;
}

/*多行注释*/
.box {
  width: 500px;
  height: 500px;
  border: 2px solid #f00;
  font-size: 30px;
  font-weight: bold;
  font-family: "Courier New", Courier, monospace;
  font-style: italic;
}

.box h1 {
  color: purple;
}

.box h1 span {
  color: red !important;
  font-size: 15px;
}

.box ul li {
  color: plum;
}

.box ul li:hover {
  color: red !important;
}

.box1 {
  width: 500px;
  height: 500px;
  color: red !important;
  background: yellow;
  font-size: 10px;
  background: lightblue;
  border-radius: 50%;
  box-shadow: 10px 10px 5px yellow;
  box-shadow: 10px 10px 10px blue;
}