CSS project [CSS]

body{
    font-size: 12pt;
    line-height: 1.75em;
    font-family: Arial, sans-serif;
    background: #030707 url('images/body.jpg');
    color: #c0c1c1;
}

a {
    color: #d43535;
    text-decoration: underline;
}

#Header {
    height: 110px;
    width: 650px;
    margin: 0px 0 0 530px;
    background: #030707 url('images/Header.jpg');
    overflow: hidden;

}

#Content {
    padding: 25px;
    height: 900px;
    width: 600px;
    background: grey;
    margin: 50px 0 0 530px;
    vertical-align:top;
    overflow:auto;
    border:1px solid red;
}

#SideBar{
    position: absolute;
    padding: 20px;
    height: 900px;
    width: 150px;
    background: grey;
    margin: 50px 0 0 260px;
    vertical-align:top;
    z-index:1;
    border:1px solid red;
}

#Footer{
    height: 110px;
    width: 650px;
    margin: 30px 0 0 530px;
    background: #030707 url('images/Footer.jpg');
}
#Footertext{
    height: 60px;
    width: 37%;
    margin: 0px 0 0 0px;
    background-color:blue;

}

#avatar{
height:70px;
width:50px;
margin: 0px 0 0 0px;
}

#avatartext{
height:180px;
width:300px;
margin: -85px 0 0 200px;
}

#avatars{
height:179px;
width:179px;
margin: 100px 0 0 50px;
background: #030707 url('images/sergen.png');
position: absolute;
}

#avatarj{
height:179px;
width:179px;
margin: 100px 0 0 350px;
background: #030707 url('images/jarec.png');
position: absolute;
}

#avatarjsframe{
height:100px;
width: 480px;
margin: 280px 0 0 50px;
position: absolute;
}

p.header1
{
font-family:"Lucida Sans Unicode", "Lucida Grande", sans-serif;
font-size:30px;
color:black;
}

p.header2
{
font-family:"Lucida Sans Unicode", "Lucida Grande", sans-serif;
font-size:27px;
color:black;
}

p.header3
{
font-family:"Lucida Sans Unicode", "Lucida Grande", sans-serif;
font-size:24px;
color:black;
}

p.bodytext1
{
font-family:"Calibri", "Calibri", sans-serif;
font-size:3;
color:black;
}

p.Avatartext1
{
font-family:"Calibri", "Calibri", sans-serif;
font-size:20px;
color:red;
font-weight:bold;
}

p.error
{
font-family:"Calibri", "Calibri", sans-serif;
font-size:25px;
color:red;
font-weight:bold;
}

p.sucess
{
font-family:"Calibri", "Calibri", sans-serif;
font-size:25px;
color:green;
font-weight:bold;
}
/*http://www.w3schools.com/cssref/css_websafe_fonts.asp*/