我试图将第一行的黑色文本块淡化为最后一行的浅灰色.我注意到亚马逊用它们的产品描述做了这件事.我试着查看CSS代码,我在那里看不到任何东西,我怀疑它是用javascript实现的.
我的问题是：如何在我自己的文本块上模拟类似的垂直淡化效果？
最佳答案
这是一个由http://www.colorzilla.com/gradient-editor/生成的完全跨浏览器的解决方案：
DEMO：http://dabblet.com/gist/3511782
CSS：
#container {
width: 400px; /*width of text Box*/
height: 200px; /*height of text Box*/
border: 2px solid black; /*it needs some kind of border to look good*/
overflow: hidden; /*necessary to cut off text without scrollbars. alternatively you can use overflow: auto; or overflow: scroll; to show a scrollbar,but you'll have to tweak the #fader Box*/
position: relative; /*positioning so that #fader can be relative to this*/
}
#fader {
height: 100px; /*from where it starts to fade to where it ends*/
position: absolute; /*so it can overlap the #container*/
width: 400px; /*has to be the same as #container*/
margin-top: 25%; /*position it right at the bottom of the #container*/
/* IE9 SVG,needs conditional override of 'filter' to 'none' */
background: url(data:image/svg+xml;base64,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);
background: -moz-linear-gradient(top,rgba(255,255,0) 0%,1) 100%); /* FF3.6+ */
background: -webkit-gradient(linear,left top,left bottom,color-stop(0%,0)),color-stop(100%,1))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,1) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,1) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,1) 100%); /* IE10+ */
background: linear-gradient(to bottom,1) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff',endColorstr='#ffffff',GradientType=0 ); /* IE6-8 */
}
HTML：
