je moeder css

.sidebar{
    display: none;
}
#header h1{
    margin: 0 auto;
}


#wrapper{
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100%;
    margin: 0;
    padding: 0;

}

#content{
    width: 100%;
    padding: 0;
    margin: 0;
}

#nav{
    width: 100%;
    height: 200px;
    padding: 0px;
    margin: 0px;
    background-color: white;
}

#nav ul{
    font-size: 20px;
}

#nav ul li{
    text-align: center;
    display: block;
    width: 100%;
    margin: 0;
    padding-top: 8px;
    padding-right: 0px;
    padding-bottom: 8px;
    padding-left: 0px;
}