Nifty rounded corners using html and css

Thanks jagdeesh for posting your question to me. Here is the simple way to have rounded corners using css without any images for optimized code.

Rounded border
HTML Code:

<b class="b1"></b><b class="b2"></b><b class="b3"></b><b class="b4"></b>
<div class="contentb">
<div>Round Border!!</div>
</div>
<b class="b4"></b><b class="b3"></b><b class="b2"></b><b class="b1"></b>

CSS Code:
.b1, .b2, .b3, .b4{font-size:1px; overflow:hidden; display:block;}
.b1 {height:1px; background:#888; margin:0 5px;}
.b2 {height:1px; background:#fff; border-right:2px solid #888; border-left:2px solid #888; margin:0 3px;}
.b3 {height:1px; background:#fff; border-right:1px solid #888; border-left:1px solid #888; margin:0 2px;}
.b4 {height:2px; background:#fff; border-right:1px solid #888; border-left:1px solid #888; margin:0 1px;}
.contentb {background: #fff; border-right:1px solid #888; border-left:1px solid #888;}
.contentb div {margin-left: 5px;}

Rounded Fill
HTML Code:

<b class="b1f"></b><b class="b2f"></b><b class="b3f"></b><b class="b4f"></b>
<div class="contentf">
<div>Round fill!!</div>
</div>
<b class="b4f"></b><b class="b3f"></b><b class="b2f"></b><b class="b1f"></b>

Css Code:
.b1f, .b2f, .b3f, .b4f{font-size:1px; overflow:hidden; display:block;}
.b1f {height:1px; background:#ddd; margin:0 5px;}
.b2f {height:1px; background:#ddd; margin:0 3px;}
.b3f {height:1px; background:#ddd; margin:0 2px;}
.b4f {height:2px; background:#ddd; margin:0 1px;}
.contentf {background: #ddd;}
.contentf div {margin-left: 5px;}

The first example will give you a rounded corner with border, simply copy the html and css code. The secound example will give you rounded corner with fill but will not have any border. You can custome the code by changing the border or background color.

If you have any doubts or queries, please feel free to contact me. To know about more about rounded corners, please check this article.