یه نمونه که تو سایت ارتمیس انجام دادم رو برات گذاشتم بر اساس میلت رنگشو تغییر بده

<div align="center" class="menu">

<div style="width: 100%">


<div class="menu">


<li><a href="default.aspx">صفحه اصلی</a></li>
<li><a href="news.aspx">اخبار و اطلاعیه</a></li>
<li><a href="sale.aspx">تصاویر</a></li>



کد css


.menu {

height: 40px;



direction:rtl;

background: #4c4e5a;

background: -webkit-linear-gradient(top, #D8E3F6 0%,#2c4c10 100%);

background: -moz-linear-gradient(top, #D8E3F6 0%,#2c4c10 100%);

background: -o-linear-gradient(top, #D8E3F6 0%,#2c4c10 100%);

background: -ms-linear-gradient(top, #D8E3F6 0%,#2c4c10 100%);

background: linear-gradient(top,#D8E3F6 0%,#2c4d10 100%);



-webkit-border-radius: 5px;

-moz-border-radius: 5px;

border-radius: 5px;

}

.menu li {

position: relative;

list-style: none;

float: right;

display: block;

height: 40px;


}

.menu li a {

display: block;

padding: 0 14px;

margin: 6px 0;

line-height: 28px;

text-decoration: none;



border-left: 1px solid #393942;

border-right: 1px solid #4f5058;



font-family: Tahoma, Arial, sans-serif;

font-weight: normal;

font-size: 12px;



color: #f3f3f3;

text-shadow: 1px 1px 1px rgba(0,0,0,.6);



-webkit-transition: color .2s ease-in-out;

-moz-transition: color .2s ease-in-out;

-o-transition: color .2s ease-in-out;

-ms-transition: color .2s ease-in-out;

transition: color .2s ease-in-out;

}



.menu li:first-child a { border-left: none; }

.menu li:last-child a{ border-right: none; }



.menu li:hover > a { color: yellow; }

.menu ul {

position: absolute;

top: 40px;

right: 0;

opacity: 0;

background: #1f2024;

-webkit-border-radius: 0 0 5px 5px;

-moz-border-radius: 0 0 5px 5px;

border-radius: 0 0 5px 5px;

-webkit-transition: opacity .25s ease .1s;

-moz-transition: opacity .25s ease .1s;

-o-transition: opacity .25s ease .1s;

-ms-transition: opacity .25s ease .1s;

transition: opacity .25s ease .1s;

}



.menu li:hover > ul { opacity: 1; }



.menu ul li {

height: 0;

overflow: hidden;

padding: 0;

-webkit-transition: height .25s ease .1s;

-moz-transition: height .25s ease .1s;

-o-transition: height .25s ease .1s;

-ms-transition: height .25s ease .1s;

transition: height .25s ease .1s;

}



.menu li:hover > ul li {

height: 36px;

overflow: visible;

padding: 0;

direction:rtl;

}


.menu ul li a {

width: 100px;

padding: 4px 30px 4px 0;

margin: 0;

border: none;

border-bottom: 1px solid #353539;

}



.menu ul li:last-child a { border: none; }