/* 去除常见标签默认的 margin 和 padding */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 设置网页统一的字体大小、行高、字体系列相关属性 */
body {
  font: 16px/1 "Microsoft Yahei",
    "Hiragino Sans GB", "Heiti SC", "WenQuanYi Micro Hei", sans-serif;
  color: #333;
}

/* 去除列表默认样式 */
ul,
ol {
  list-style: none;
}

/* 去除默认的倾斜效果 */
em,
i {
  font-style: normal;
}

/* 去除a标签默认下划线，并设置默认文字颜色 */
a {
  text-decoration: none;
  color: #333;
}

/* 设置img的垂直对齐方式为居中对齐，去除img默认下间隙 */
img {
  vertical-align: middle;
}

/* 去除input默认样式 */
input {
  border: none;
  outline: none;
  color: #333;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 400;
}
.content{
    width: 100vw;
    height: auto;
    position: relative;
}
.content img{
    width: 100vw;
}
.content-1{
  width: 75vw;
  height: auto;
  position: absolute;
  top: 100px;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  
 
}
.content-1 img{
  width: 75vw;
}
.content-play{
  width: 40%;
  height: 10%;
  background-color: rgb(247, 153, 46);
  position: relative;
  top: -20%;
  left: 30%;
  font-size: 250%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f5f5f5;
  border-radius: 15px 15px 15px 15px;
}
.content-play:hover{
  background-color: rgb(250, 217, 0);
  cursor: pointer;
}
.content-play:active{
   background-color: rgb(250, 133, 0);
}