navigation background transparency issues - html

Question

My problem im having is my drop down menu background is some how transparent and im able to see the text on the page behind the menu. Also i am using blogger if that makes any difference.
Here is my problem in this image
Here is my code here"
<div style="text-align: left;">
<style>
#homelink {
background-image: url(http://i946.photobucket.com/albums/ad301/campbellmichelle41109/sims3_logo_ver931034_zpsmnyi2tcj.png);
background-repeat: no-repeat;
background-color: transparent;
display: block;
width: 126px;
height: 140px;
}
#homelink {
position: relative;
padding: 0;
margin: -97px;
}
#mbt-menu, #mbt-me
nu ul {
margin: -15px;
padding: 12px;
list-style: none;
}
#mbt-menu ul {
border: none !important;
padding: 0 !important;
}
#mbt-menu {
width: 100%;
margin: 0px auto;
javascript:void(0)
background-image: url("http://i946.photobucket.com/albums/ad301/campbellmichelle41109/navbg1.1_zps86kuvvkj.png") repeat-x;
-moz-border-radius: 6px;
-webkit-border-radius: 6px;
border-radius: 6px;
}
#mbt-menu:before,
#mbt-menu:after {
content: "";
display: table;
}
#mbt-menu:after {
clear: both;
}
#mbt-menu {
zoom:1;
}
#mbt-menu li {
float: left;
border-right: 1px solid #328ad4;
-moz-box-shadow: 1px 0 0 #469ee8;
-webkit-box-shadow: 1px 0 0 #469ee8;
box-shadow: 0px 0 0 #469ee8;
position: relative;
}
#mbt-menu a {
float: left;
padding: 10px 25px;
color: #ffffff;
text-transform: uppercase;
font: bold 13px 'Trebuchet MS',Arial, sans-serif;
text-decoration: none;
text-shadow: 0 0px 0 #000;
}
#mbt-menu li ul a{
color: #000000;
}
#mbt-menu li ul a:hover{
color: #057BBA;
}
#mbt-menu li:hover > a {
color: #0;
}
*html #mbt-menu li a:hover { /* IE6 only */
color: #000000;
}
#mbt-menu ul li {
border-style: solid;
border-color: #EBEBEB;
}
#mbt-menu ul {
margin: 20px 0 0 0;
_margin: 0; /*IE6 only*/
opaciaty: 0;
visibility: hidden;
position: absolute;
top: 55px;
left: 15px;
z-index: 9999;
background: #ffffff;
-moz-border-radius: 3px;
-webkit-border-radius: 3px;
border-radius: 3px;
-webkit-transition: all .2s ease-in-out;
-moz-transition: all .2s ease-in-out;
-ms-transition: all .2s ease-in-out;
-o-transition: all .2s ease-in-out;
transition: all .2s ease-in-out;
}
#mbt-menu li:hover > ul {
opacity: 1;
visibility: visible;
margin: 0;
}
#mbt-menu ul ul {
top: 0;
left: 150px;
margin: 0 0 0 20px;
_margin: 0; /*IE6 only*/
}
#mbt-menu ul li {
float: none;
display: block;
border: 0;
_line-height: 0; /*IE6 only*/
border: 1px solid #EBEBEB;
}
#mbt-menu ul li:last-child {
-moz-box-shadow: none;
-webkit-box-shadow: none;
box-shadow: none;
}
#mbt-menu ul a {
padding: 7px;
width: 130px;
_height: 9px; /*IE6 only*/
display: block;
white-space: nowrap;
float: none;
text-transform: none;
}
#mbt-menu ul a{
font-size: 12px;
}
#mbt-menu ul a:hover {
background-color: #ffffff;
}
#mbt-menu ul li:first-child > a {
-moz-border-radius: 3px 3px 0 0;
-webkit-border-radius: 3px 3px 0 0;
border-radius: 3px 3px 0 0;
}
#mbt-menu ul ul li:first-child a:after {
left: -6px;
top: 50%;
margin-top: -6px;
border-left: 0;
border-bottom: 6px solid transparent;
border-top: 6px solid transparent;
border-right: 6px solid #3b3b3b;
}
#mbt-menu ul li:first-child a:hover:after {
border-bottom-color: #04acec;
}
#mbt-menu ul ul li:first-child a:hover:after {
border-right-color: #0299d3;
border-bottom-color: transparent;
}
#mbt-menu ul li:last-child > a {
-moz-border-radius: 0 0 3px 3px;
-webkit-border-radius: 0 0 3px 3px;
border-radius: 0 0 3px 3px;
}
/* non links */
#mbt-menu ul {
color: #000000;
font-size: 12px;
}
#mbt-menu li ul:hover {
color: #057BBA;
}
#mbt-menu ul {
pading: 7px;
width: 130px;
height: 34px;
_height: 9px;
display: block;
white-space: nowrap;
float: none;
text-transform: none;
}
#mbt-menu {
font: bold 13px 'Trebuchet MS', Arial, sans-serif;
text-decoration: none;
text-shadow: 0 0px 0 #000;
}
</style>
<div align=center>
<ul id="mbt-menu">
<li><a id=homelink href="http://thesims3addictresource.blogspot.com/"></a></li>
<li>
Simology
<ul>
<li>Sims
<ul>
<li>Faries</li>
<li>Ghosts</li>
<li>Plant Sims</li>
<li>Witches</li>
<li>Werewolves</li>
<li>Vampires</li>
<li>Zombies
</ul>
</li>
<li>Needs</li>
<li>Skills</li>
<li>Traits</li>
<li>Moodlets</li>
<li>Life & Death
<ul>
<li>Death</li>
<li>Ghosts</li>
</ul>
</li>
<li>Lifetime Wishes</li>
<li>Life Time Rewards</li>
</ul>
</li>
<li>
Expansion Guide
<ul>
<li>Ambitions
<ul>
<li>New Skills</li>
<li>New Lifetime Rewards</li>
<li>Celebrities</li>
</ul>
<li>Generations</li>
<li>Pets</li>
<li>Late Night</li>
<li>Supernatural</li>
<li>World Adventures</li>
<li>University Life</li>
</li>
</ul>
</li>
<li>
Towns
<ul>
<li>Sunset Valley</li>
<li>Monte Vista</li>
<li>Hidden Springs</li>
<li>Dragon Valley</li>
<li>Roaring Heights</li>
</ul>
</li>
<li>
Free Downloads
<ul>
<li> Custom Sims </li>
<li>Sliders</li>
</ul>
</li>
<li>About</li>
<li>Contact</li>
</ul>
</div>
</div>

Answer 1

Add/Update the following entries in your css code.
#mbt-menu ul li, #mbt-menu>li li a {
background-color: #ffffff;
}
Also remove the following width property. its causing problem due to fixed width of ul element
#mbt-menu ul a{
/*Other styles*/
width:130px;
/*Other styles*/
}

Answer 2

Please add a background-color property for the following ID.
#mbt-menu {
font: bold 13px 'Trebuchet MS', Arial, sans-serif;
text-decoration: none;
text-shadow: 0 0px 0 #000;
background-color: /*your color code*/;
}