Adding background image to button using CSS

问题:

I am trying to add a background image to a button (or link with the same class) which already has a background color.

Here is the jsfiddle: http://jsfiddle.net/BNvke/

The button looks great by itself, but I am trying to make it so that if I add a certain class, the padding will be adjusted and a background image will be displayed, however the image does not show. Here is the CSS/HTML:

.button {
padding: 10px; 
margin-right: 8px;
margin-bottom:10px;
font-family: Arial, Tahoma, Verdana, FreeSans, sans-serif;
text-shadow:0 1px 1px rgba(0, 0, 0, 0.25);
display: inline-block;
white-space: nowrap;
line-height:1em;
position:relative;
outline: none;
overflow: visible;
cursor: pointer;
border-radius: 4px;
-moz-border-radius: 4px; 
-webkit-border-radius:4px; 
box-shadow:1px 1px 2px 0 #CCCCCC;
-moz-box-shadow: 1px 1px 2px 0 #CCCCCC;
-webkit-box-shadow: 1px 1px 2px 0 #CCCCCC;
}

.button_blue {
border: 1px solid #305875;
color: #FBFBFB;
background-color: #3D6E97;
}

.button_blue:hover {
color: #FBFBFB;
opacity:0.9; 
filter:alpha(opacity=90);        
}

.button_about { 
background-image: url(http://i47.tinypic.com/2ni0ahd.png) 3px 5px no-repeat;
padding-left: 35px;
padding-right: 15px;
}​

-

<p><a class="button button_blue">Without Background</a></p>

<p><a class="button button_blue button_about">With Background</a></p>​

How can I get that background image to show?

回答1:

see http://jsfiddle.net/BNvke/1/

just change

background-image url(http://i47.tinypic.com/2ni0ahd.png) 3px 5px no-repeat;

with

background: url(http://i47.tinypic.com/2ni0ahd.png) 3px 5px no-repeat;

and move up the last rule so the rule about background-color defined for .button_blue can be applied on cascade