css3实现针线缝合效果(图解步骤)

<div class="noshadow_div">一个不带阴影效果的DIV</div>

.noshadow_div{
height:100px;
width:500px;
padding:20px;
margin:15px;
background:#6E6E6E;
-moz-border-radius:6px;
-webkit-border-radius:6px;
border-radius:6px;
font-size:24px;
color:white;
}

<div class="noshadow_div_stitch">一个不带阴影效果的DIV加上虚线边框</div>

.noshadow_div_stitch{
height:100px;
width:500px;
padding:20px;
margin:15px;
background:#6E6E6E;
-moz-border-radius:6px;
-webkit-border-radius:6px;
border-radius:6px;
font-size:24px;
color:white;
border:2pxdashedrgba(255,255,255,0.8);
}

<div class="shadow_div_stitch">为加上虚线边框的DIV加上阴影</div>

.shadow_div_stitch{
height:100px;
width:500px;
padding:20px;
margin:15px;
background:#6E6E6E;
-moz-border-radius:6px;
-webkit-border-radius:6px;
border-radius:6px;
font-size:24px;
color:white;
border:2pxdashedrgba(255,255,255,0.8);
-moz-box-shadow:0004px#6E6E6E,2px1px4px4pxrgba(10,10,0,.5);
-webkit-box-shadow:0004px#6E6E6E,2px1px4px4pxrgba(10,10,0,.5);
box-shadow:0004px#6E6E6E,2px1px6px4pxrgba(10,10,0,.5);
}

<div class="noshadow_div_solid">一个不带阴影效果的DIV加上实线边框</div>

.noshadow_div_solid{
height:100px;
width:500px;
padding:20px;
margin:15px;
background:#6E6E6E;
border:2pxsolidrgba(255,0,255,0.8);
-moz-border-radius:6px;
-webkit-border-radius:6px;
border-radius:6px;
font-size:24px;
color:white;
position:relative;
z-index:0;
}

<div class="noshadow_div_solid_stitch">为加上实线边框不带阴影效果的DIV加上伪元素,通过伪元素::before展现出来（兼容webkit、firefox、opera）</div>

.noshadow_div_solid_stitch{
height:100px;
width:500px;
padding:20px;
margin:15px;
background:#6E6E6E;
border:2pxsolidrgba(255,0,255,0.8);
-moz-border-radius:6px;
-webkit-border-radius:6px;
border-radius:6px;
font-size:24px;
color:white;
position:relative;
z-index:0;
}
.noshadow_div_solid_stitch:before{
border:2pxdashedrgba(255,255,255,0.8);
:3px;
bottom:3px;
left:3px;
right:3px;
position:absolute;
z-index:-1;
position:absolute;
content:'';
}

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