尝试一下: 设置边框样式 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <style>
    p.none {
      border-style: none;
    }

    p.dotted {
      border-style: dotted;
    }

    p.dashed {
      border-style: dashed;
    }

    p.solid {
      border-style: solid;
    }

    p.double {
      border-style: double;
    }

    p.groove {
      border-style: groove;
    }

    p.ridge {
      border-style: ridge;
    }

    p.inset {
      border-style: inset;
    }

    p.outset {
      border-style: outset;
    }

    p.hidden {
      border-style: hidden;
    }
  </style>
</head>

<body>
  <p class="none">无边框。</p>
  <p class="dotted">虚线边框。</p>
  <p class="dashed">虚线边框。</p>
  <p class="solid">实线边框。</p>
  <p class="double">双边框。</p>
  <p class="groove"> 凹槽边框。</p>
  <p class="ridge">垄状边框。</p>
  <p class="inset">嵌入边框。</p>
  <p class="outset">外凸边框。</p>
  <p class="hidden">隐藏边框。</p>
</body>

</html>
        