css

封页角

原文来自：snippets.barretlee.com，只是为了自己学习收集特意fork了一遍。如有侵权，联系删除：i@webcliwn.net。
演示：


ON SALE

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<div class="wrapper">
       <div class="ribbon-wrapper-green"><div class="ribbon-green">NEWS</div></div>
</div>​
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.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;
}​