I want to duplicate homepage for all my pages

I want to duplicate my homepage then call the pages A. page b c. - So that I can edit just a few things on all the pages. I already have some pages but I can't get bits exactly the same.I copied parts of style.css to header.php in the parent theme but didn't work - maybe 'cause it calls to the main page at the end - If I delete the div main site at the end of the header.php I lose most of what I want. Here is the code

html ?php language_attributes(); ?
!--![endif]--
head
meta charset="?php bloginfo( 'charset' ); ?"
    meta name="viewport" content="width=device-width"
    title?php wp_title( '|', true, 'right' ); ?/title
    link rel="profile" href="http://gmpg.org/xfn/11"
    link rel="pingback" href="?php bloginfo( 'pingback_url' ); ?"
    !--[if lt IE 9]
    script src="?php echo get_template_directory_uri(); ?/js/html5.js"/script
    ![endif]--
    ?php wp_head(); ?
style
@import url(http://fonts.googleapis.com/css?family=Crimson+Text:300,400,500,700);

body {
    background-image:url(http://Shot.jpeg); ----- this pic is not the same px as homepage!
    background-position: 70px 0px;background-size: cover;background-attachment:scroll;margin-left: 0px;margin-top: 0px;margin-right: 0px;margin-bottom: 0px;font-family: 'Crimson+Text', serif, inherit;font-variant:small-caps;font-size:16px;}
.style1 {  ----up to style12----}#tst4 {position: absolute; top:105px; left:70px;}
--
/style
/head

body
table width="100%" border="0" cellspacing="0" cellpadding="0" style="height:0;"
  tr bgcolor="#1a1e2a"
    td align="left" valign="top" bgcolor="#1a1e2a"table width="100%" border="0" cellspacing="0" cellpadding="0"
     tr
      tdtable border="0" cellspacing="0" cellpadding="0"
        tr
         tdtable border="0" cellspacing="0" bgcolor="#1a1e2a" cellpadding="0"
                  tr
                    td width="20px" /td
                    tdspan class="style1"My homepage title is three words/span/td
                    tdspan class="style3" I wish the third word to go here so it is different on every page - /span/td
                  /tr               
              /table/td
            /tr
            tr
              tddiv id="tst4";img src="http://www.myhomepage.net/wp-content/uploads/2014/01/header_underline.png" alt="header_underline" width="200" height="17" //div/td
            /tr
          /table/td          
          td width="50%" align="right" valign="right"div bgcolor="646565" align="right" 
            table width="50%" border="5" align="right" cellpadding="0" cellspacing="0" 
              tr
                 td width="100%" class="style7" style="border-bottom-right-radius:0px;border-bottom-left-radius:0px;"div align="center"?php  if ( function_exists('cn_social_icon') ) echo cn_social_icon(); ?/div/td
                tr
                tr
                td class="style10"  div bgcolor="646565" align="right"likenbsp;us/div/td
              /tr
            /table
          /div/td
        /tr
      /table
      div align="right"/div/td
  /tr
  tr
    tdtable width="100%" border="0" cellpadding="0" cellspacing="0"
      tr
        td class="style6"table border="0" cellpadding="0" cellspacing="0" bordercolor="#0d8181" bgcolor="#1a1e2a" style="border-bottom-right-radius:5px;"
          /tr
              tdp/p/td
          /tr
/style
/head
div id="main" class="site-main"