বেসিক css

/*<br>
  Theme Name: Abdullah Al Shamim<br>
  */
 
body {
width:960px;
font-family:Arial;
font-size:14px;
margin: 0 auto;
padding: 0;
text-align: center;
background-image:url(images/f1.png);
background-repeat:repeat-xy;
}

#header {
width:960px;
height:140px;

 border: 1px #000000 solid;
padding-top:9px;
background-image:url(images/bgg.png);
}



#sidebar-left {
width:170px;
background-image:url(images/s1.png);
border:1px;#003300 solid;
float: left;
position: relative;
}
#content {
width: 600px;
    float: left;
position: relative;
border:2px;000000 solid;
background-image:url(images/i.png);
}
#sidebar-right {
width:180px;
float: right;
position: relative;
background-image:url(images/s2.png);
border: 1px #64a9fd solid;
}

#title {
font-size:30px;
color:#336600;
}

#navigation {
    background-image:url(images/mb.png);
    height: 45px;
    width: 960px;
    float: right;
    float:left;
    padding-top: 1px;
    border:solid 1px #FF3300;
    }
.nav_menu li{
    display:block;
    padding-left: 11;
    padding-right: 11;
    float: left;
}

.nav_menu a {
    font-size: 18px;
    text-decoration: none;
    font-family: times new roman;
    color:white;
    font-weight: bold;
}
.nav_menu a:hover {
    color: red;
    font-size:20px;
    }

#footer {
width:960px;
height:50px;
background-color:#9900FF;
color:#ffffff;
float:left;
float:right;
border: 2px #000000 solid;
}