/* 消除网页格式 */
html,
body {
    height: 100%;
    margin: 0;
    min-width: 1500px;
}

ul,
li {
    margin: 0;
    padding: 0;
}

li {
    list-style: none;
}

h1,
h2 {
    margin: 0;
}

p {
    margin: 0;
    padding: 0;
}
/* 修改特性 */
.nav{
    min-width: 1200px;
    width: auto;
}
/* 菜单栏 */
.top{
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    background-color: gray;
    height: 50px;
    width: 100%;
    position: fixed;
    z-index: 9999;
    min-width: 1200px;
}
.top>.toptext>.home{
    margin: 0;
    width: 90px;
    height: 50px;
    background-color: black;
}

.menu{
    float: right;
}
.toptext>.home{
    float: left;
    margin: 10px;
}
.top>.toptext>.home>.homebox{
    margin: 10px;
}
 .menu>div{
            float: left; 
            margin-top: 0px;
            margin-right: 80px;
            cursor: pointer;
            line-height: 50px;
            font-size: 16px;
}  
/* 背景 */
.backtaxt{
    margin-left: 3%;
    opacity: 0.1;
    width: 94%;
    line-height: 27ch;
    position: fixed;
    z-index: 1;
    min-width: 1200px;
}
/* 主体框 */
.mainbox{
    position: absolute;
    margin-top: 80px;
    width: 80%;
    height: auto;
    min-height: 800px;
    background-color: rgba(10,10,10,0.1);
    border-radius: 10px;
    border: 5px solid rgba(10,10,10,0.2);
    position: relative;
    margin-left: 8.5%;
    padding: 20px;
    z-index: 2;
    
}