<style type="text/css">
*{ margin:0; padding:0;}
body{ font:12px Verdana, Geneva, sans-serif; padding:10px;}
.box-round{ width:400px;}
.box-round .content{ border:1px solid black; border-width:0 1px;}
.b1,.b2,.b3,.b4{ border:1px solid black; border-width:0 1px; height:1px;}
.b1{ margin:0 5px; background:black;}
.b2{ margin:0 3px; border-width:0 2px;}
.b3{ margin:0 2px;}
.b4{ margin:0 1px; height:2px;}
</style>
<div class="box-round">
<div class="b1"></div>
<div class="b2"></div>
<div class="b3"></div>
<div class="b4"></div>
<div class="content">Hello world,my name is Atao1988!!!</div>
<div class="b4"></div>
<div class="b3"></div>
<div class="b2"></div>
<div class="b1"></div>
</div>
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