@charset "UTF-8";

*{
  /*文字不可选择*/
  -webkit-touch-callout: none;
  /* -webkit-user-select: none; */
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  }

#master_ico{
position:absolute;
color:#FFFFFF;
/* top:0px; */
z-index:1;
}
  
.footer {
	color:black;
	font-size:0.85em;
	text-align:center;
	}
  
#master_img_all{
text-align: center;
}

#drop_menu_1{
background-image:url("/y_web_static/files/dropdown_image_1.jpg");
background-size:cover;
cursor:pointer;
}

#drop_menu_2{
background-image:url("/y_web_static/files/dropdown_image_2.jpg");
background-size:cover;
cursor:pointer;
}

#drop_menu_3{
background-image:url("/y_web_static/files/dropdown_image_3.jpg");
background-size:cover;
cursor:pointer;
}

#drop_menu_txt{
font-size:200%;
text-align:center;
vertical-align:middle;
color:black;
}

a:link {
text-decoration:none; /*CSS下划线效果：无下划线*/
color:#000000;
}
a:visited {
text-decoration:none; /*CSS下划线效果：无下划线*/
color:#000000;
}
a:hover {
text-decoration:none; /*CSS下划线效果：无下划线*/
color:#000000;
}

a:active {
text-decoration:none; /*CSS下划线效果：无下划线*/
color:#000000;
}


.master_img{
max-width:300%;
margin: 0-100%;
overflow:hidden;
}


.top_left
{
position:absolute;
overflow:hidden;
/* background-color : #262626;  */
background  :linear-gradient(#000000,#000000, #505050);

left: 0%;
width:100%;
height:100%;
}

.top_right
{
position:absolute;
/* background-color : white;  */
/* left: 61%; */
/* width:39%; */
/* height:100%; */
}

.Code_Rain
{ 
  /* 文字的颜色 */
  background-image: -webkit-gradient(linear, 0 0, 0 bottom, from(#4facfe), to(#00f2fe));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  
  /* 文字竖排列 */
  width: 15px;  
  margin: 0 auto;  
  line-height: 15px;  
  font-size: 15px;  
  
  top:100px;
  
  font-weight:bold;
  text-align:center;
    
  /* 英文自动换行 */
  word-wrap: break-word;
	position:absolute;

	animation-timing-function:linear;

  /* 动画播放次数 */
	animation-iteration-count:infinite;
  /* 动画的播放方向 */
	animation-direction:normal;
	animation-play-state:running;
}