@charset "UTF-8";
i {
  font-weight: bold;
  color: #f00;
}

p {
  color: #00f;
  font-size: 30px;
  /*
        多行注释
    */
}

.box {
  border: 10px double #f00;
  color: #00f;
  background-color: #ff0;
  font-size: 30px;
  width: 200px;
  height: 100px;
  margin-top: 20px;
  border-radius: 20px;
  box-shadow: 10px 10px 10px #0f0;
}

.newBox {
  border: 10px double #f00;
  color: #00f;
  background-color: #ff0;
  font-size: 30px;
  width: 200px;
  height: 100px;
  margin-top: 20px;
  border-radius: 20px;
}

#list {
  width: 200px;
  height: 200px;
  background: #f00;
}

.mask {
  width: 40px;
  height: 50px;
  background: yellow;
}