body{
    background: url(../images/menu_background.png) no-repeat;
    width: 100%;
    background-attachment: fixed;
}

#container{
    width: 100%;
}

#menu_content{
    width: 1000px;
    margin: 0 auto;
    background-color: rgba(0,0,0,0.7);
}

#menu_main{
    width: 900px;
    margin: 0 auto;
    display: flex;
}

#menu_main_left{
    width: 340px;
    margin: 50px 0;
}

#menu_main_right{
    width: 530px;
    margin-top: 50px;
}



.read{
    font-family: serif;
    font-size: 1.5em;
    text-align: left;
    color: #fff;
}

h2{
    color: #fff;
    text-align: center;
    font-family: serif;
    font-size: 1.5em;
    margin-top: 80px;
}

.menu_system{
    font-family: sans-serif;
    color: #fff;
    font-size: 1.3em;
    margin-top: 20px;
}

#menu_box{
    display: flex;
}

.menu_df{
    color: #fff;
    font-family: sans-serif;
    font-size: 0.9em;
    width: 170px;
    margin-top: 20px;
}

#menu_img{
    width: 530px;
    margin-left: 30px;
    display: flex;
    flex-wrap:  wrap;
}

.me_img_l{
    margin-right: 10px;
    margin-bottom: 5px;
}

#menu_img a{
    background-color: #000;
}