導航下拉菜單邊框問題

Question

我希望菜單的下拉部分有邊框，並且拋出菜單的下拉部分。我也想擺脫顯示在下拉菜單右側的藍色邊框。

下圖顯示了我遇到的問題，我想：

這裏是我的導航菜單代碼：

<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-menu ul { 
margin: -15px; 
padding: 17px; 
list-style: none; 
} 

#mbt-menu ul { 
border-style: solid; 
border-color: #EBEBEB; 
} 
#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: 1px 0 0 #469ee8; 
position: relative; 
} 
#mbt-menu a { 
float: left; 
padding: 10px 25px; 
color: #ffffff; 
text-transform: uppercase; 
font: bold 12px Arial, Helvetica; 
text-decoration: none; 
text-shadow: 0 1px 0 #000; 
} 

#mbt-menu li ul a{ 
color: #000000; 
} 

#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: 46px; 
left: 0; 
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 li:first-child > a:after { 
content: ''; 
position: absolute; 
left: 40px; 
top: -6px; 
border-left: 6px solid transparent; 
border-right: 6px solid transparent; 
border-bottom: 6px solid #469ee8; 
} 
#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; 
} 

</style> 

<div align=center> 

<ul id="mbt-menu"> 
<li><a id=homelink href="http://sims3addictresource.blogspot.com/"></a></li> 



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</div> 
</div> 

Answer 1

爲了擺脫小藍三角的，去掉這條規則：

#mbt-menu ul li:first-child > a:after { 
    content: ''; 
    position: absolute; 
    left: 40px; 
    top: -6px; 
    border-left: 6px solid transparent; 
    border-right: 6px solid transparent; 
    border-bottom: 6px solid #469ee8; 
} 

要除去周圍的下拉菜單的背景中，添加下列規則：

#mbt-menu ul { 
    border: none !important; 
    padding: 0 !important; 
} 

要刪除的藍色邊框（實際上是一個盒子的陰影），刪除這些規則：

#mbt-menu li { 
    float: left; 
    border-right: 1px solid #328ad4; 
    -moz-box-shadow: 1px 0 0 #469ee8; /* DELETE */ 
    -webkit-box-shadow: 1px 0 0 #469ee8; /* DELETE */ 
    box-shadow: 1px 0 0 #469ee8; /* DELETE */ 
    position: relative; 

要調整下拉菜單的定位，所以它與父鏈接很好地對齊，在此處調整left和top屬性：

#mbt-menu ul { 
    margin: 20px 0 0 0; 
    _margin: 0; 
    opaciaty: 0; 
    visibility: hidden; 
    position: absolute; 
    top: 46px; /* ADJUST DROP DOWN */ 
    left: 0; /* ADJUST DROP DOWN */ 
    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; 
} 

Answer 2

基本上只是想是這樣的：

#mbt-menu ul {border:none; padding: 0;} 

#mbt-menu li li {box-shadow: none; border-width: 2px 2px 0 2px;} 

#mbt-menu li li:last-child {border-bottom-width: 2px;} 

雖然我不會像這樣添加樣式。這僅用於演示目的。您可能需要使這些樣式更具體，以便覆蓋已有的樣式。 （我剛剛通過CSS終端進行了測試。）理想情況下，將這些樣式集成到您所屬的現有代碼中。

您對父ul/li有影響sub ul/li的樣式，所以理想情況下使用類似於子選擇器（>）的方式將這些規則更改爲僅針對最高級別的樣式。