BODY      {color:#FFB000;}
a:active  {text-decoration: none}
a:link    {text-decoration: none}
a:visited {text-decoration: none}

.left {
    position: absolute;
    top: 100px;
    left: 20px;
    right: 20px;
    width: 165px;
    height:1800px;
    z-index: 2;
}

            .wrap {
                position: absolute;
                top: 100px;
                left:200px;
                overflow: hidden;
                background: black;
                height: 1800px;
                min-width: 700px;
                width: 700px;
                box-shadow: 1px 1px 4px gray;
                /* border-bottom: 1px solid black;
                border-top: 1px solid black; */
                border: 1px solid gray;
                border-radius: 5px;
                z-index: 1;
            }

            .right {
                position: relative;
                top: 40px;
                background-color:green ;
                margin-left: 850px;
                height: 20px;
            }
            .center {
                position: relative;
                top: 0;
                left: 0;
                overflow: hidden;
                background: black;
                height: 1800px;
                min-width: 700px;
                width: 700px;
                box-shadow: 1px 1px 4px gray;
                /* border-bottom: 1px solid black;
                border-top: 1px solid black; */
                border: 1px solid gray;
                border-radius: 5px;
            }

  .menus {
width: 160px;
overflow: hidden;
box-shadow: 1px 1px 4px gray;
/* border-bottom: 1px solid black;
border-top: 1px solid black; */
border: 1px solid gray;
border-radius: 5px;
}

.menu {
overflow: hidden;
height: 0;
transition: all 0.3s ease;
}

.menu_title {
width: 160px;
height: 50px;
line-height: 50px;
background: #fafafa;
color: gray;
font-size: 20px;
padding-left: 15px;
transition: all 0.3s ease;
cursor: pointer;
position: relative;
font-weight: bold;
overflow: hidden;
}

.menu_title:hover {
background: #dedede;
color: black;
}

.indicator {
width: 50px;
height: 50px;
font-weight: bold;
position: absolute;
right: 0;
top: 0;
transition: all 0.3s ease;
font-weight: bold;
text-align: center;
}

.item {
width: 160px;
height: 40px;
line-height: 40px;
background: gray;
color: white;
padding-left: 10px;
transition: all 0.3s ease;
cursor: pointer;
overflow: hidden;
}

.item:hover {
background: #B22222;
}

.item a {
width: 160px;
height: 40px;
display: block;
text-decoration: none;
color: white;
text-decoration: none;
}

.item_divider {
width: 200px;
height: 1px;
background: white;
display: block;
opacity: 0.8;
}

.menu_divider {
width: 10%;
height: 1px;
background: gray;
}