Home  >  Article  >  Web Front-end  >  Use div css to achieve simple drop-down menu effect_html/css_WEB-ITnose

Use div css to achieve simple drop-down menu effect_html/css_WEB-ITnose

WBOY
WBOYOriginal
2016-06-24 12:28:591427browse

Implement a custom drop-down menu, see below, the CSS has been commented.

Add the following CSS in style management, and copy the following CSS code directly to the bottom of the style:

css code: /* drop-down menu style*/

*{margin:0;padding:0;border:0;}
#div_center { width:790px; height:23px; background:#003399; margin-left: auto;margin-right:auto;} /*Definition Overall width, height; background:003399; Control background color, center alignment*/
#nav { line-height: 20px; list-style-type: none; margin-top:5px;} ; /*Control the first-level menu Line height; top margin 5px; */
#nav a { display: block; width: 77px; text-align:center; font-size:12px;} /* Overall style of first-level menu links: each menu's Width, center-aligned, text size*/
#nav a:link { color:#FFF; text-decoration:none;margin:0;} /* Unvisited link*/
#nav a:visited {color:#FFF;text-decoration:none;margin:0;} /* Visited color*/
#nav a:hover {color:#C00;text-decoration:none;} /* The mouse is on On the link*/

#nav li {float: left;} /* The first level menu is left aligned*/
#nav li a:hover{background:#FFFFFF;} /* The mouse is at the first level Change its background color on the menu*/
#nav li ul {line-height: 24px; background:#FFF; list-style-type: none;text-align:left;left: -999em; width:132px; position: absolute;border-width: 1px;border-top-style: none;border-right-style: solid;border-bottom-style: solid;border-left-style: solid;border-color: #003399; padding :1px;}                                                                                                                                                                                   /* The overall style of the secondary menu: line height 24px; background color; outer frame width; relative position; one pixel border, no style on the top, solid lines on the left and right bottom, border color #003399; 1 padding Pixel*/

#nav li ul a{display:block; width: 130px;text-align:left;padding-left:2px;}      /* Secondary menu link style; background width, left alignment , left indent 2 */
#nav li ul a:link {color:#0d5097; text-decoration:none;}                                                                                                                                                           ; 003399;}/* Mouse over link*/

#nav li:hover ul {left: auto;}

#nav li.sfhover ul {left: auto;}

#content { clear: left;}

Insert the following code into the template where you want it to appear:

DIV code:

The above link address has been modified by myself.

The effect achieved is as follows:

Rendering

Isn’t it very simple!

To add, if you want to center the whole thing on IE, you need to add the following code at the top of the template. I don’t need to add it on Firefox, but I need to add it on IE:

Supplementary code

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn