CSS non rispettato con IE

[Igreo]

Non capisco proprio come il mio CSS creato ad hoc con il DOCTYPE, non rispecchia le stesse caratteristiche con IE; eccolo:

(Specificatamente il Tag A che io ho settato in bianco, su IE lo trovo in Giallo... qualsiasi classe io nomini quel tag [+o-])

<!--
body{
        padding:0px;
        margin-top: 1px;
        margin-right: 1px;
        margin-bottom: 2px;
        margin-left: 3px;
        font-family: "Times New Roman", Georgia, Garamond;
        font-size: 11pt;
        text-decoration: none;
        color: #993300;
}
 img {
    border: 0px;
}
 a {
        font-size: 11pt;
    text-decoration: none;
    color: #FFFFFF;
}
 a:link {
        text-decoration: underline;
}
 a:visited {
     color: #FFF000;
        text-decoration: none;
}
 a:active {
        text-decoration: none;
}
 a:hover {
        color: #555555;
        text-decoration: overline;
}
 .jsbrand {
        font-family: "Times New Roman", Georgia, Garamond;
        font-size: 20pt;
        color: #dddddd;
        font-weight: bold;
        text-decoration: none
}
 .nascosta {
        display: none
}
 .show {
        display: block;
}
 .puls1_x2 {
        background-image: url('img/puls_blue.png');
        background-repeat: no-repeat;
}
 .puls1_x2_ph {
        background-image: url('img/puls_blue_ph.png');
        background-repeat: no-repeat;
}
 .puls1_x1 {
        background-image: url('img/puls_orange.png');
        background-repeat: no-repeat;
}
 .puls1_x3 {
        background-image: url('img/puls_red.png');
        background-repeat: no-repeat;
}
.puls1_x3_ph {
        background-image: url('img/puls_green_ph.png');
        background-repeat: no-repeat;
}
 .puls1_x4_ph {
        background-image: url('img/puls_blue1_ph.png');
        background-repeat: no-repeat;
}
 .puls2_x2 {
        background-image: url('img/puls2_green_ph.png');
        background-repeat: no-repeat;
}
 .puls2_x2_ph {
        background-image: url('img/puls2_red.png');
        background-repeat: no-repeat;
}
 .puls2_x1 {
        background-image: url('img/puls2_green.png');
        background-repeat: no-repeat;
}
 .puls2_x3 {
        background-image: url('img/puls2_yellow.png');
        background-repeat: no-repeat;
}
 .puls3_x3 {
        background-image: url('img/puls_yellow.png');
        background-repeat: repeat;
}
 .puls_p {
        background-image: url('img/m24.jpg');
        background-repeat: repeat;
}
 .puls_p_on{
        background-image: url('img/m25.jpg');
        background-repeat: repeat;
}
 .puls_p_up {
        background-image: url('img/m26.jpg');
        background-repeat: repeat;
}

 .div_padd {
    margin-top: 0px;
}
 h1 {
        font-family: "Times New Roman", Garamond;
        font-size: 20pt;
        color: #000000;
        font-weight: bold;
        text-decoration: none;
}
 h2 {
        font-family: "Times New Roman", Garamond;
        font-size: 16pt;
        color: #2F4F4F;
        font-weight: normal;
        text-decoration: none;
}
 h3 {
        font-family: "Times New Roman", Garamond;
        font-size: 12pt;
        color: #000000;
        font-weight: bold;
        text-decoration: none;
}
 h4 {
        font-family: "Times New Roman", Garamond;
        font-size: 10pt;
        color: blue;
        background-color: #003366;
        text-decoration: none;
}
 big {
        font-family: "Times New Roman", Garamond;
        font-size: 14pt;
        text-decoration: none;
}
 .tabcent {
        vertical-align: middle;
}
 .overfl {
        overflow: auto;
}
 #my_Div {
     background-color:black;
     color: #FF9900;
 }
 #mod1 {
     font-family: "Times New Roman", Garamond;
     font-size: 10pt;
     text-align: center;
     color: #006400;
     background-color: #F5F5F5;
 }
 table {
        font-family: Garamond, "Times New Roman";
        font-size: 12pt;
        color: blue;
        text-decoration: none;
}
 .writ {
        font-family: Garamond, "Times New Roman";
        font-size: 12pt;
        color: #000000;
        text-decoration: none;
}
 .menu {
        font-family: "Times New Roman", Garamond;
        font-size: 12pt;
        font-weight: BOLD;
        color: #000555;
}
 a.menu:link {
        font-family: "Times New Roman", Garamond;
        font-size: 12pt;
        font-weight: BOLD;
        color: #FFFFFF;
}
 a.menu:hover {
        font-family: "Times New Roman", Garamond;
        font-size: 12pt;
        font-weight: BOLD;
        text-decoration: none;
        color: #000000;
}
 menu_sub {
        font-family: "Times New Roman", Garamond;
        font-size: 9pt;
        font-weight: BOLD;
        color: #000000;
}
 a.menu_sub:link {
        font-family: "Times New Roman", Garamond;
        font-size: 9pt;
        font-weight: BOLD;
        color: #000000;
}
 .sb {
        font-family: "Times New Roman", Garamond;
        font-size: 14pt;
        color: #FFFACD;
}
 .dida {
        font-family: Garamond, "Times New Roman";
        font-size: 9pt;
        color: #FFFFFF;
        font-weight: BOLD;
        background-color: #dddddd;
}
 a.dida:link {
        font-family: Garamond, "Times New Roman";
        font-size: 9pt;
        color: #000000;
        font-weight: BOLD;
}
 a.dida:hover {
        font-family: Garamond, "Times New Roman";
        font-size: 9pt;
        color: #555555;
        font-weight: BOLD;
}
 .sbnu {
        font-family: "Times New Roman", Garamond;
        font-size: 18px;
        color: #003366;
        text-decoration: none;
}
 .swnu {
        font-family: "Times New Roman", Garamond;
        font-size: 11px;
        color: #FF0000;
        background-color: #000000;
}
 .snu {
        font-family: "Times New Roman", Garamond;
        font-size: 18px;
        color: #1CEF00;
        text-decoration: none;
}
 .dime3 {
        font-family: "Times New Roman", Garamond;
        font-size: 9pt;
        color: #00FFFF;
}
 .dime4 {
        font-family: "Times New Roman", Garamond;
        font-size: 8pt;
        color: #006400;
}
 .bnu {
        font-family: "Times New Roman", Garamond;
        color: #003366;
        font-size: 10pt;
        text-decoration: none;
        text-align: center;
}
 .snub {
        font-family: "Times New Roman", Garamond;
        font-size: 18pt;
        color: #000000;
        text-decoration: none;
}
 .sw {
        font-family: "Times New Roman", Garamond;
        font-size: 12pt;
        color: #FFFFFF;
}
  .s {
     font-family: "Times New Roman", Garamond;
     font-size: 9pt;
     text-align: justify;
     color: #335588;
     background-color: #FF6F4F;
 }
  .swnub {
     font-family: "Times New Roman", Garamond;
     font-size: 18pt;
     font-weight: BOLD;
     background-color: red;
     color: #87CEFA;
     text-decoration: none;
 }
  .sbnub {
     font-family: "Times New Roman", Garamond;
     font-size: 11px;
     font-weight: BOLD;
     color: #003366;
     text-decoration: none;
     background-color: #191970;
 }
--> 

Grazie!