边角形勺不起作用

时间:2014-06-01 21:08:23

标签: html css css3 border css-shapes

我想使用border-corner-shape属性来实现以下形状。但它不起作用。

enter image description here

我的代码如下:

.left-1 {
   background-color: #3498DB;
   border-corner-shape: scoop;
   border-radius: 30px;
   width: 200px;
   height: 200px;
}
<div class="left-1"></div>

为什么不起作用?

3 个答案:

答案 0 :(得分:10)

使用径向渐变:

这是使用径向渐变实现边角角落效果的另一种替代方法。在这种方法中,我们使用多个径向渐变并将它们定位在角落。

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.border-scoop {
  height: 300px;
  width: 300px;
  background: -webkit-radial-gradient(0% 100%, circle, transparent 15%, steelblue 15%) no-repeat, -webkit-radial-gradient(100% 0%, circle, transparent 15%, steelblue 15%) no-repeat, -webkit-radial-gradient(0% 0%, circle, transparent 15%, steelblue 15%) no-repeat, -webkit-radial-gradient(100% 100%, circle, transparent 15%, steelblue 15%) no-repeat;
  background: radial-gradient(circle at 0% 100%, transparent 15%, steelblue 15%) no-repeat, radial-gradient(circle at 100% 0%, transparent 15%, steelblue 15%) no-repeat, radial-gradient(circle at 0% 0%, transparent 15%, steelblue 15%) no-repeat, radial-gradient(circle at 100% 100%, transparent 15%, steelblue 15%) no-repeat;
  background-position: 0% 100%, 100% 0%, 0% 0%, 100% 100%;
  background-size: 75% 75%;
}
body {
  background: -webkit-linear-gradient(90deg, crimson, indianred, purple);
  background: linear-gradient(90deg, crimson, indianred, purple);
}
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<div class="border-scoop"></div>
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使用剪辑路径:

使用clip-path也可以实现Scooped border corner效果。纯CSS版本仅支持基本形状(圆形,多边形,椭圆形等),不支持路径或形状组合,但可以使用SVG(内联/外部)。

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.border-scoop {
  width: 200px;
  height: 200px;
  background-color: #3498DB;
  -webkit-clip-path: url(#scoop);
  clip-path: url(#scoop);
}
body {
  background: -webkit-linear-gradient(90deg, crimson, indianred, purple);
  background: linear-gradient(90deg, crimson, indianred, purple);
}
&#13;
<svg width='0' height='0'>
  <defs>
    <clipPath id='scoop' clipPathUnits='objectBoundingBox'>
      <path d='M0.2,0 A0.2,0.2 0 0,1 0,0.2 
                     L0,0.8 A0.2,0.2 0 0,1 0.2,1
                     L0.8,1 A0.2,0.2 0 0,1 1,0.8
                     L1,0.2 A0.2,0.2 0 0,1 0.8,0z' />
    </clipPath>
  </defs>
</svg>
<div class='border-scoop'></div>
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带有Box Shadow的透明勺:

下面的代码片段是GCyrillus的变种&#39;回答,这需要一个额外的元素,但即使页面的背景不是纯色也会有效。然而,该方法仍然具有与另一个答案中提到的相同的固定和已知大小限制。

必须注意的是,框阴影具有比径向渐变更好的浏览器支持。

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.border-scoop{
  height: 300px;
  width: 300px;
  position: relative;
  overflow: hidden;
}
.inner{
  position: absolute;
  top: 0px; left: 0px;
  height: 100%;
  width: 100%;
}
.border-scoop:before, .border-scoop:after, .inner:after, .inner:before{
  position: absolute;
  content: '';
  height: 30%; width: 30%;
  border-radius: 50%;
  background: transparent;
  box-shadow: 0px 0px 0px 210px steelblue;  
}
.border-scoop:before{
  top: -15%; left: 85%;
}
.border-scoop:after{
  top: -15%; left: -15%;
}
.inner:after{
  top: 85%; left: 85%;
}
.inner:before{
  top: 85%; left: -15%;
}

body{
  background: -webkit-linear-gradient(90deg, crimson, indianred, purple);
  background: linear-gradient(90deg, crimson, indianred, purple);
}
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<div class="border-scoop">
  <div class="inner"></div>
</div>
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答案 1 :(得分:7)

此功能(border-corner-shape : curve | scoop | bevel | notch)尚未实施(尚未实验),因此不适用于任何现有浏览器。

答案 2 :(得分:5)

如果该框具有已知且固定大小,则可以使用一个伪元素和box-shadow伪造它,甚至可以绘制弯曲的边框:

<强> DEMO HTML:

<div class="scoop">
  <p>another single div shaped</p>
</div>
<div class="scoop border">
  <p>another single div shaped</p>
</div>

CSS:

.scoop {
  position:relative;
  height:200px;
  width:200px;
  overflow:hidden;
}
body {
  background:#F3F3F3;/* color reused in pseudo element */
}
.scoop:before{
  content:'';
  position:absolute;
  left:0;
  margin:-20px;
  height:40px;
  width:40px;
  border-radius:100%;
  background:#F3F3F3;
  box-shadow:200px 0 0 #F3F3F3,
    0 200px 0 #F3F3F3,
    200px 200px 0 #F3F3F3,
    0 0 0 500px #2798DE;/* here we draw background-color of parent */
}

div > * {
  margin:auto;
  position:relative;/* to draw on top of shadowed pseudo element */
}

并绘制边框,让我们添加一些额外的阴影:

div.border {
  box-shadow:
    23px  0 0 -20px,/* 23px =>(towards right) width of pseudo seen + fakeborder width 0 0 -20px => reduce size shadow of 20px */ 
    -23px  0 0 -20px,
    0  23px  0 -20px,
    0  -23px  0 -20px;
}
div.border:before {
  box-shadow: 
    0 0 0 3px,/* draw 3px unblured shadow */
    200px 0 0 #F3F3F3,/* mask of main background-color */ 
   200px 0 0 3px ,
    0 200px 0 #F3F3F3,
    0 200px 0 3px,
    200px 200px 0 #F3F3F3,
    200px 200px 0 3px,
    0 0 0 500px #2798DE;
}

border-corner-animation