我想在<img>
标记上放置一个渐变。标签的src
属性是angular-item。例如:
<img src={{value.angitem.image}}>
我试过制作css类:
.pickgradient {
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(0,0,0,0)), color-stop(100%,rgba(0,0,0,0.65)));
}
和
<img src={{value.angitem.image}} class="pickgradient ">
但它不起作用。我该怎么办?
答案 0 :(得分:38)
您可以使用容器并将渐变放在该容器上。然后使用负z-index将图像定位在渐变后面。
.pickgradient {
display:inline-block;
background: -moz-linear-gradient(top, rgba(0,0,0,0) 0%, rgba(0,0,0,0.65) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(0,0,0,0.65)), color-stop(100%,rgba(0,0,0,0))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%); /* IE10+ */
background: linear-gradient(to bottom, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#a6000000', endColorstr='#00000000',GradientType=0 ); /* IE6-9 */
}
img{
position:relative;
z-index:-1;
display:block;
height:200px; width:auto;
}
&#13;
<div class="pickgradient">
<img src="http://i.imgur.com/HDssntn.jpg" />
</div>
&#13;
如评论所述,您还可以使用具有渐变和绝对定位的伪元素将渐变放在图像上:
.pickgradient{
position:relative;
display:inline-block;
}
.pickgradient:after {
content:'';
position:absolute;
left:0; top:0;
width:100%; height:100%;
display:inline-block;
background: -moz-linear-gradient(top, rgba(0,0,0,0) 0%, rgba(0,0,0,0.65) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(0,0,0,0.65)), color-stop(100%,rgba(0,0,0,0))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%); /* IE10+ */
background: linear-gradient(to bottom, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#a6000000', endColorstr='#00000000',GradientType=0 ); /* IE6-9 */
}
img{
display:block;
height:200px;width:auto;
}
&#13;
<div class="pickgradient">
<img src="http://i.imgur.com/HDssntn.jpg" />
</div>
&#13;
答案 1 :(得分:2)
对于2020年,蒙版图像效果很好。它可以在现代浏览器中运行(当前在许多浏览器中不是IE,-webkit-前缀)。 https://caniuse.com/#feat=css-masks
img {
height: 200px;
width: auto;
mask-image: linear-gradient(to bottom, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%);
-webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0) 0%,rgba(0,0,0,0.65) 100%);
}
<img src="http://i.imgur.com/HDssntn.jpg" />
答案 2 :(得分:0)
尝试在问题图像上放置div
并将渐变放在div而不是图像上。
答案 3 :(得分:0)
我建议您将background-color:black;
设置为容器,然后设置class img{opacity:0.4}
。然后,您将获得与使用前相同的效果
backgroundImage:linear-gradient(rgba(0, 0, 0, 0.8),rgba(0, 0, 0, 0.8),rgba(0, 0, 0, 0.8),rgba(0, 0, 0, 0.8)),url(img_url))
我在幻灯片上的示例:
.Slide {
position: relative;
border: 1px solid blue;
min-width: 100%;
height: 100%;
transition: 0.5s;
background-color: rgb(0, 0, 0);
}
.Slide img{
position: relative;
border: 1px solid blue;
min-width: 100%;
height: 100%;
transition: 0.5s;
opacity: 0.4;
}