html - 混合模式图层超出图像边界

Question

所以我使用了 mix-blend-mode: multiply;悬停时在我的图像顶部创建一个多层的效果。问题是图层超出了图像边界，如下图所示。我尝试将宽度和高度设置为 .imgcon 和 .imgcon > img(请参阅下面的代码)并且图层适合，但是当在不同的屏幕分辨率下查看时它会弄乱响应式 Web 功能。所以我尝试将宽度和高度设置为 100% 以保持响应功能，但图层仍然超出图像边界。

这是我的代码:

.imgwrapper {
  position: relative;
}



.imgcon + div {
 position: absolute;
  left: 42%;
  top: 44%;
  color: white;
  text-decoration: underline;
  opacity:0;
  display: block;
  pointer-events: none;
  font-size: 18px;
  
  letter-spacing: 4px;

}

.imgcon {
 position: relative;
 background: rgba(209, 19, 15, 0);
  transition: ease 0s;
  -webkit-transition: ease 0s;
  -moz-transition: ease 0s;
  -ms-transition: ease 0s;
  -o-transition: ease 0s;
   mix-blend-mode: multiply;
}
.imgcon > img {
 transition: ease 0s;
  -webkit-transition: ease 0s;
  -moz-transition: ease 0s;
  -ms-transition: ease 0s;
  -o-transition: ease 0s;
}
.imgcon:hover {
  background: #b41f24;
    background: rgba(180, 31, 36, 0.85);


}
.imgcon:hover > img {
  z-index: -1;
  -webkit-filter: grayscale(100%) blur(1.5px) contrast(100%);
  filter: grayscale(100%) blur(1.5px) contrast(100%) ;
  mix-blend-mode: multiply;

}

.imgcon:hover + div {
  display: block;
  opacity: 1;
  z-index: 1;
}

<a href="works.html?option=emkoinvite" class="permalink">
					<div class="desktop-3 mobile-half columns">
						<div class="item first-row">
							<h3>EmKO invitation</h3>
							<span class="category">Identity, print</span>

							<div class="imgwrapper">
							<div class="imgcon">
							<img src="http://i.imgur.com/XmhcxJS.png" /></div>
							<div id="view">view</div></div>
						</div><!-- // .item -->
					</div><!-- // .desktop-3 -->
				</a>

Answer 1

这是您的解决方案。解释一下，任何 block 元素在默认情况下都是其父元素的 100% 宽度。如果您希望元素保持其容器的宽度，则需要使用不同的 display 属性； inline-block 似乎在这里最有意义。

底部增加的空间是很多元素都有的东西，我称之为下行空间。某些字母，如“g”和 j”，会下沉到文本行下方。下沉的部分称为下降部分。许多元素为下降部分留出一点空间。要摆脱这个空间，您可以设置 line-height 到 0。

文本的宽度和居中只是让我更容易将文本正确居中的方法。

如果您有任何其他问题，请告诉我!

.imgwrapper {
  position: relative;
}



.imgcon + div {
 position: absolute;
  text-align: center;
  top: 42%;
  width: 256px;
  color: white;
  text-decoration: underline;
  opacity:0;
  display: block;
  pointer-events: none;
  font-size: 18px;
  
  letter-spacing: 4px;

}

.imgcon {
 position: relative;
 display: inline-block;
 line-height: 0;
 background: rgba(209, 19, 15, 0);
  transition: ease 0s;
  -webkit-transition: ease 0s;
  -moz-transition: ease 0s;
  -ms-transition: ease 0s;
  -o-transition: ease 0s;
   mix-blend-mode: multiply;
}
.imgcon > img {
 transition: ease 0s;
  -webkit-transition: ease 0s;
  -moz-transition: ease 0s;
  -ms-transition: ease 0s;
  -o-transition: ease 0s;
}
.imgcon:hover {
  background: #b41f24;
    background: rgba(180, 31, 36, 0.85);


}
.imgcon:hover > img {
  z-index: -1;
  -webkit-filter: grayscale(100%) blur(1.5px) contrast(100%);
  filter: grayscale(100%) blur(1.5px) contrast(100%) ;
  mix-blend-mode: multiply;

}

.imgcon:hover + div {
  display: block;
  opacity: 1;
  z-index: 1;
}

<a href="works.html?option=emkoinvite" class="permalink">
					<div class="desktop-3 mobile-half columns">
						<div class="item first-row">
							<h3>EmKO invitation</h3>
							<span class="category">Identity, print</span>

							<div class="imgwrapper">
							<div class="imgcon">
							<img src="http://i.imgur.com/XmhcxJS.png" /></div>
							<div id="view">view</div></div>
						</div><!-- // .item -->
					</div><!-- // .desktop-3 -->
				</a>