任何人都可以猜到我应该用什么样的CSS样式来按一下按钮来猜测这个样子.

注意:我意识到这是Windows上无样式按钮的默认外观,我不需要应用任何CSS来获得这种风格,但在Mac和Linux上它不一样,所以我不能依赖默认为此设计操作系统.我不得不在css中强迫这种风格.谁知道CSS样式可以持续产生这种效果?
Firefox 3.6.12

Safari 5.0.3

Chrome 8

Internet Explorer 8

出于某种原因,IE8的专有filter财产不起作用(应该).
<button>
<span>
<span>
Submit
</span>
</span>
</button>
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它似乎更好地跨浏览器与2个子元素.使用button自身作为外部元素引起了一些问题.
button {
background: none;
border: none;
padding: 0;
}
button span {
display: block;
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
border: 1px solid #999;
padding: 0;
background: #F0F0F0;
background: -moz-linear-gradient(top, #F0F0F0 50%, #D4D4D4 50%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(50%,#F0F0F0), color-stop(50%,#D4D4D4));
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#F0F0F0', endColorstr='#D4D4D4',GradientType=0 );
}
button span span {
border: 1px solid #fff;
padding: 10px;
}
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好的,因为我看不到您的图像,我只是在我的操作系统上看了一个默认按钮(Windows 7).样式将是这样的(只考虑Firefox,因为我懒得做跨浏览器版本):
a.button {
height: 18px;
padding: 2px 8px;
border: 1px solid #F3F3F3;
-moz-box-shadow: 0 0 0 1px #707070;
-moz-border-radius: 3px;
background: -moz-linear-gradient(top, #F2F2F2 0%, #EBEBEB 50%, #DDDDDD 51%, #CFCFCF 100%);
font: normal 12px sans-serif;
color: black;
text-decoration: none;
}
a.button:hover {
border: 1px solid #ECF7FD;
-moz-box-shadow: 0 0 0 1px #3C7FB1;
background: -moz-linear-gradient(top, #EAF6FD 0%, #D9F0FC 50%, #BEE6FD 51%, #A7D9F5 100%);
}
a.button:active {
padding: 2px 7px 3px 9px;
border: 1px solid #73A7C4;
border-bottom: 0;
-moz-box-shadow: 0 0 0 1px #2C628B;
background: -moz-linear-gradient(top, #E5F4FC 0%, #C4E5F6 50%, #98D1EF 51%, #68B3DB 100%);
}
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这是一个使用CSS3的CSS版本.它在Internet Explorer中不起作用,Opera不会渲染背景渐变.所以你最好使用图像而不是纯CSS.
[编辑]
一个更完整的实现:jsfiddle(随意添加IE过滤器和Opera的某些后备并编辑我的答案发布它 - BE BOLD :))
a.button {
height: 18px;
padding: 2px 8px;
border: 1px solid #F3F3F3;
-moz-box-shadow: 0 0 0 1px #707070;
-webkit-box-shadow: 0 0 0 1px #707070;
box-shadow: 0 0 0 1px #707070;
-moz-border-radius: 3px;
-webkit-border-radius: 3px;
border-radius: 3px;
background: -moz-linear-gradient(top, #F2F2F2 0%, #EBEBEB 50%, #DDDDDD 51%, #CFCFCF 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0,#F2F2F2), color-stop(0.5,#EBEBEB),color-stop(0.51,#DDDDDD),color-stop(1,#CFCFCF));
background: linear-gradient(top, #F2F2F2 0%, #EBEBEB 50%, #DDDDDD 51%, #CFCFCF 100%);
font: normal 12px sans-serif;
color: black;
text-decoration: none;
}
a.button:hover {
border: 1px solid #ECF7FD;
-moz-box-shadow: 0 0 0 1px #3C7FB1;
-webkit-box-shadow: 0 0 0 1px #3C7FB1;
box-shadow: 0 0 0 1px #3C7FB1;
background: -moz-linear-gradient(top, #EAF6FD 0%, #D9F0FC 50%, #BEE6FD 51%, #A7D9F5 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0,#EAF6FD), color-stop(0.5,#D9F0FC),color-stop(0.51,#BEE6FD),color-stop(1,#A7D9F5));
background: linear-gradient(top, #EAF6FD 0%, #D9F0FC 50%, #BEE6FD 51%, #A7D9F5 100%);
}
a.button:active {
padding: 2px 7px 3px 9px;
border: 1px solid #73A7C4;
border-bottom: 0;
-moz-box-shadow: 0 0 0 1px #2C628B;
-webkit-box-shadow: 0 0 0 1px #2C628B;
box-shadow: 0 0 0 1px #2C628B;
background: -moz-linear-gradient(top, #E5F4FC 0%, #C4E5F6 50%, #98D1EF 51%, #68B3DB 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0,#E5F4FC), color-stop(0.5,#C4E5F6),color-stop(0.51,#98D1EF),color-stop(1,#68B3DB));
}Run Code Online (Sandbox Code Playgroud)
<a class="button" href="#">Click me</a>Run Code Online (Sandbox Code Playgroud)
[编辑2]
编辑包括IE的过滤器.http://jsfiddle.net/Kyle_/aUsxy/3/