body{
    background-image: url('image/1jpg');
}


.container{
    margin-top: 30px;
margin-right: 100px;
margin-bottom: 10px;
margin-left: 100px;


}
* {
    box-sizing: border-box;
}

.left {
    float:left;
   
    width: 20%;
    height: 50px;
    margin: 0px;
    

}
.main{
    float:left;
   
    width: 60%;
    height: 50px;
    margin: 0px;
}
.right {
    float:left;
   
    width: 20%;
    height: 50px;
    margin: 0px;
}
.lable {
    text-align: center;

}
nav{
    background-color: lightcoral;
    float: left;
    height: 200px;
    width: 20%;
    text-align: center;
    margin: 0px;
    padding: 15px;
}