[HTML][CSS]Div sie wciska pod Diva Opcje

[-~~Eclipse~~-]

Witam, mam pytanie. Czemu div "wydarzenia" wciska się pod div "div.okienko?
Kod:

[HTML] pobierz, plaintext 
div.okienko {  
      width:590px;  
      /*height:333px;*/  
      border:Solid 1px #ccc; 
	-webkit-border-radius:10px;
	-moz-border-radius:10px;
	-o-border-radius:10px;
	float:left;
    }  
[HTML] pobierz, plaintext 

[HTML] pobierz, plaintext 
#wydarzenia {
background:#222222;
width:340px;
height:333px;
margin-left:618px;
display:inline-block;
float:right;
}
[HTML] pobierz, plaintext 

[-~~Eclipse~~-]

Style.css:

[HTML] pobierz, plaintext 
body {
background:url(../images/bg.jpg)repeat;
}
 
 
#container{
width:960px;
height:100%;
margin:auto;
position:relative;
margin-top:167px;
}
 
#contenttop {
background:url(../images/contenttopborder.png);
width:910px;
height:14px;
margin-top:25px;
}
 
#contentmiddle {
background:url(../images/contentmiddleborder.png);
width:910px;
height:13px;
}
 
#contentbottom {
background:url(../images/contentbottomborder.png);
width:910px;
height:14px;
}
 
#sluchaj {
background:url(../images/sluchaj.png)repeat-x;
width:260px;
height:26px;
padding-top:10px;
margin-left:590px;
}
 
#wydarzenia {
background:#222222;
width:340px;
height:333px;
margin-left:618px;
display:inline-block;
float:right;
}
 
#slidercontent {
width:958px;
height:333px;
clear:both;
}
[HTML] pobierz, plaintext 

Slider.css:

[HTML] pobierz, plaintext 
div.okienko {  
      width:590px;  
      /*height:333px;*/  
      border:Solid 1px #ccc; 
	-webkit-border-radius:10px;
	-moz-border-radius:10px;
	-o-border-radius:10px;
	float:left;
    }  
    div.okienko IMG {  
      border:0px;  
    }  
    div.nawigacja {  
      background:transparent;  
      color:#fff;  
      display:block;  
      text-align:center;  
    }  
    div.nawigacja a {  
      text-decoration:none;  
      color:#fff;  
      font-family:Tahoma;  
      font-size:10pt;  
      font-weight:bold;  
      padding-left:3px;  
      padding-right:3px;  
    }  
    div.nawigacja a:hover {  
      background:#fff;  
      color:#000;  
    }  
    .red {  
      background:red;  
    }  
[HTML] pobierz, plaintext