html - 较大元素上的 CSS 背景图像渐变和边框线

Question

我想要一个最后有一条线的背景图像。边框或线条应该从背景大小结束的地方开始。概念中的边界线是灰色的。它应该只保留一个元素。

  background-image: gradient-y(@color-grey-2, @color-white);
  background-position: left top;
  background-size: 100% 40px;
  background-repeat: no-repeat;

Answer 1

http://jsfiddle.net/8Q79p/旧 JSFIDDLE。（包装）

http://jsfiddle.net/8Q79p/1/更新；如果你只想要一个元素，你可以使用color-stop

<div id="gradient">

</div>

#gradient{
    background: rgb(221,221,221); /* Old browsers */
    background: -moz-linear-gradient(top, rgba(221,221,221,1) 1%, rgba(255,255,255,1) 46%, rgba(149,149,149,1) 47%, rgba(149,149,149,1) 48%, rgba(255,255,255,1) 49%, rgba(252,252,252,1) 100%, rgba(27,27,27,1) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(1%,rgba(221,221,221,1)), color-stop(46%,rgba(255,255,255,1)), color-stop(47%,rgba(149,149,149,1)), color-stop(48%,rgba(149,149,149,1)), color-stop(49%,rgba(255,255,255,1)), color-stop(100%,rgba(252,252,252,1)), color-stop(100%,rgba(27,27,27,1))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, rgba(221,221,221,1) 1%,rgba(255,255,255,1) 46%,rgba(149,149,149,1) 47%,rgba(149,149,149,1) 48%,rgba(255,255,255,1) 49%,rgba(252,252,252,1) 100%,rgba(27,27,27,1) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, rgba(221,221,221,1) 1%,rgba(255,255,255,1) 46%,rgba(149,149,149,1) 47%,rgba(149,149,149,1) 48%,rgba(255,255,255,1) 49%,rgba(252,252,252,1) 100%,rgba(27,27,27,1) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, rgba(221,221,221,1) 1%,rgba(255,255,255,1) 46%,rgba(149,149,149,1) 47%,rgba(149,149,149,1) 48%,rgba(255,255,255,1) 49%,rgba(252,252,252,1) 100%,rgba(27,27,27,1) 100%); /* IE10+ */
    background: linear-gradient(to bottom, rgba(221,221,221,1) 1%,rgba(255,255,255,1) 46%,rgba(149,149,149,1) 47%,rgba(149,149,149,1) 48%,rgba(255,255,255,1) 49%,rgba(252,252,252,1) 100%,rgba(27,27,27,1) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#dddddd', endColorstr='#1b1b1b',GradientType=0 ); /* IE6-9 */
    width: 100%;
    height: 100px;
    border: solid 1px black;
}