Круглые картинки средствами CSS
<span class="frame"><img src="http://seangaffney.cc/new/img/me.jpg" /></span>
<span class="frame"><img src="http://a3.twimg.com/profile_images/1136130947/twitter-dribbble-profile-pic_reasonably_small.png" /></span>
<span class="frame"><img src="http://a3.twimg.com/profile_images/1100546975/Screen_shot_2010-08-11_at_9.08.03_AM_reasonably_small.png" /></span>
<span class="frame"><img src="http://a2.twimg.com/profile_images/935982818/avatar_main_copy_square_reasonably_small.jpg" /></span>
body{background:#333; padding:10em;}
.frame{
display:inline-block;
position:relative;
overflow:hidden;
}
.frame>img{
vertical-align:top;
}
.frame, .frame:before{
-moz-border-radius:100em;
border-radius:100em;
}
.frame>img{
-webkit-border-radius:100em;
}
.frame:before{
content:'';
display:block;
position:absolute;
left:0;
right:0;
width:100%;
height:100%;
margin:-10em;
border:10em solid #333;
}
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