- 1). Open the external CSS page or HTML page whose header contains CSS code in your HTML editor. Create space for the CSS3 code that makes up the drop-down menu wherever you keep your CSS information. If you use an external CSS file, make sure the file is properly referenced in your HTML page.
- 2). Enter the following CSS3 code for the main navigation bar and buttons:
#nav {
margin: 0;
padding: 7px 6px 0;
background: #7d7d7d url(img/gradient.png) repeat-x 0 -110px;
line-height: 100%;
border-radius: 2em;
-webkit-border-radius: 2em;
-moz-border-radius: 2em;
-webkit-box-shadow: 0 1px 3px rgba(0,0,0, .4);
-moz-box-shadow: 0 1px 3px rgba(0,0,0, .4);
}
#nav li {
margin: 0 5px;
padding: 0 0 8px;
float: left;
position: relative;
list-style: none;
} - 3). Add the following CSS3 code for the main level link style and mouse cursor hover:
/* main level link */
#nav a {
font-weight: bold;
color: #e7e5e5;
text-decoration: none;
display: block;
padding: 8px 20px;
margin: 0;
-webkit-border-radius: 1.6em;
-moz-border-radius: 1.6em;
text-shadow: 0 1px 1px rgba(0,0,0, .3);
}
#nav a:hover {
background: #000;
color: #fff;
}
/* main level link hover */
#nav .current a, #nav li:hover > a {
background: #666 url(img/gradient.png) repeat-x 0 -40px;
color: #444;
border-top: solid 1px #f8f8f8;
-webkit-box-shadow: 0 1px 1px rgba(0,0,0, .2);
-moz-box-shadow: 0 1px 1px rgba(0,0,0, .2);
box-shadow: 0 1px 1px rgba(0,0,0, .2);
text-shadow: 0 1px 0 rgba(255,255,255, 1);
} - 4). Add the following CSS3 code for
/* sub levels link hover */
#nav ul li:hover a, #nav li:hover li a {
background: none;
border: none;
color: #666;
-webkit-box-shadow: none;
-moz-box-shadow: none;
}
#nav ul a:hover {
background: #0078ff url(img/gradient.png) repeat-x 0 -100px !important;
color: #fff !important;
-webkit-border-radius: 0;
-moz-border-radius: 0;
text-shadow: 0 1px 1px rgba(0,0,0, .1);
} - 5). Add the following CSS3 code for the drop-down list and its various effects:
/* dropdown */
#nav li:hover > ul {
display: block;
}
/* level 2 list */
#nav ul {
display: none;
margin: 0;
padding: 0;
width: 185px;
position: absolute;
top: 35px;
left: 0;
background: #ddd url(img/gradient.png) repeat-x 0 0;
border: solid 1px #b4b4b4;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
-webkit-box-shadow: 0 1px 3px rgba(0,0,0, .3);
-moz-box-shadow: 0 1px 3px rgba(0,0,0, .3);
box-shadow: 0 1px 3px rgba(0,0,0, .3);
}
#nav ul li {
float: none;
margin: 0;
padding: 0;
}
#nav ul a {
font-weight: normal;
text-shadow: 0 1px 0 #fff;
}
/* level 3+ list */
#nav ul ul {
left: 181px;
top: -3px;
} - 6). Add the following CSS3 code to create the rounded corners for the navigational menus. Note that the rounded corners may not display properly in some browsers:
/* rounded corners of first and last link */
#nav ul li:first-child > a {
-webkit-border-top-left-radius: 9px;
-moz-border-radius-topleft: 9px;
-webkit-border-top-right-radius: 9px;
-moz-border-radius-topright: 9px;
}
#nav ul li:last-child > a {
-webkit-border-bottom-left-radius: 9px;
-moz-border-radius-bottomleft: 9px;
-webkit-border-bottom-right-radius: 9px;
-moz-border-radius-bottomright: 9px;
}
When finished, save the CSS file.
Source...