用阴影包裹的CSS Div

Question

我知道这可能已经在网上被覆盖了几次，但我认为我不知道如何正确描述我正在寻找的效果，因为我似乎找不到任何结果。如今，div似乎在其父母的边缘包裹着它是一个非常受欢迎的趋势：

与图像菜单上的标题元素类似。不必像图片中那样被舍入，但类似的效果会很好，如果可能的话，所有这些都是纯CSS。

我完全失去了从这里开始的地方，任何见解肯定会受到赞赏。

Answer 1

猜猜这会对你有所帮助！

CSS Ribbons的纯实现。 Demo here

http://www.red-team-design.com/wp-content/uploads/2011/04/css-ribbons.png

同样的另一个实现，Pure CSS Ribbon Builder。 Builder here

http://dribbble.s3.amazonaws.com/users/28943/screenshots/439245/css-ribbon.jpg

或者您可以尝试角落色带

您需要拥有 HTML

<div class="wrapper">
    <div class="ribbon-wrapper-green"><div class="ribbon-green">NEWS</div></div>
</div>

CSS

.wrapper {
  margin: 50px auto;
  width: 280px;
  height: 370px;
  background: white;
  border-radius: 10px;
  -webkit-box-shadow: 0px 0px 8px rgba(0,0,0,0.3);
  -moz-box-shadow:    0px 0px 8px rgba(0,0,0,0.3);
  box-shadow:         0px 0px 8px rgba(0,0,0,0.3);
  position: relative;
  z-index: 90;
}

.ribbon-wrapper-green {
  width: 85px;
  height: 88px;
  overflow: hidden;
  position: absolute;
  top: -3px;
  right: -3px;
}

.ribbon-green {
  font: bold 15px Sans-Serif;
  color: #333;
  text-align: center;
  text-shadow: rgba(255,255,255,0.5) 0px 1px 0px;
  -webkit-transform: rotate(45deg);
  -moz-transform:    rotate(45deg);
  -ms-transform:     rotate(45deg);
  -o-transform:      rotate(45deg);
  position: relative;
  padding: 7px 0;
  left: -5px;
  top: 15px;
  width: 120px;
  background-color: #BFDC7A;
  background-image: -webkit-gradient(linear, left top, left bottom, from(#BFDC7A), to(#8EBF45)); 
  background-image: -webkit-linear-gradient(top, #BFDC7A, #8EBF45); 
  background-image:    -moz-linear-gradient(top, #BFDC7A, #8EBF45); 
  background-image:     -ms-linear-gradient(top, #BFDC7A, #8EBF45); 
  background-image:      -o-linear-gradient(top, #BFDC7A, #8EBF45); 
  color: #6a6340;
  -webkit-box-shadow: 0px 0px 3px rgba(0,0,0,0.3);
  -moz-box-shadow:    0px 0px 3px rgba(0,0,0,0.3);
  box-shadow:         0px 0px 3px rgba(0,0,0,0.3);
}

.ribbon-green:before, .ribbon-green:after {
  content: "";
  border-top:   3px solid #6e8900;   
  border-left:  3px solid transparent;
  border-right: 3px solid transparent;
  position:absolute;
  bottom: -3px;
}

.ribbon-green:before {
  left: 0;
}
.ribbon-green:after {
  right: 0;
}