.maintabelle_border{

/* umrandung des headers */
width:1000px;
}

.header_border{

/* umrandung des headers */
border-top-width: 0px; 
border-top-style: solid; 
border-top-color: #000000;

border-bottom-width: 0px; 
border-bottom-style: solid;
border-bottom-color: #000000; 


border-left-width:0px; 
border-left-style: solid;
border-left-color: #000000; 

border-right-width: 0px; 
border-right-style: solid;
border-right-color: #000000; 
width:1000px;
 

}

.content_border{

/* umrandung des headers */
border-top-width: 0px; 
border-top-style: solid; 
border-top-color: #00000;

border-bottom-width:0px; 
border-bottom-style: solid;
border-bottom-color: #000000; 


border-left-width: 0px; 
border-left-style: solid;
border-left-color: #000000; 

border-right-width: 0px; 
border-right-style: solid;
border-right-color: #000000; 
width:1000px;
 

}


.footer_border{

/* umrandung des headers */
border-top-width: 0px; 
border-top-style: solid; 
border-top-color: #000000;

border-bottom-width: 0px; 
border-bottom-style: solid;
border-bottom-color: #000000; 


border-left-width: 0px; 
border-left-style: solid;
border-left-color: #000000; 

border-right-width: 0px; 
border-right-style: solid;
border-right-color: #000000; 
width:1000px;
 

}