CSS淡出其他人

Question

您好，我正在尝试创建悬停效果，因此当有人将鼠标悬停在带有 LI 元素的图像上时，该图像保持完全不透明，但其他 LI 元素会稍微淡出。我知道这是可以做到的，但目前我的代码让一切都淡出。

请在我的代码下方找一个fiddle。

非常感谢任何帮助。

.imageWrapper {
  position: relative;
  z-index: 5;
}

.imageWrapper:after {
  content: " ";
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  display: block;
  z-index: 10;
  transition: background 0.3s linear;
}

.cpClientIcon {
  /*
  .cpImageWithTitle {
    .title {
      @include opacity(0);
      transition:opacity 0.3s linear;
    }
  }
*/
}

.cpClientIcon:hover .imageWrapper:after, .cpClientIcon:focus .imageWrapper:after, .cpClientIcon:active .imageWrapper:after {
  background: red;
}

.cpClientIcon:hover .imageWrapper:hover, .cpClientIcon:hover .imageWrapper:focus, .cpClientIcon:hover .imageWrapper:active, .cpClientIcon:focus .imageWrapper:hover, .cpClientIcon:focus .imageWrapper:focus, .cpClientIcon:focus .imageWrapper:active, .cpClientIcon:active .imageWrapper:hover, .cpClientIcon:active .imageWrapper:focus, .cpClientIcon:active .imageWrapper:active {
  /*
        .title {
          @include opacity(1);
        }
*/
}

.cpClientIcon:hover .imageWrapper:hover .imageWrapper:after, .cpClientIcon:hover .imageWrapper:focus .imageWrapper:after, .cpClientIcon:hover .imageWrapper:active .imageWrapper:after, .cpClientIcon:focus .imageWrapper:hover .imageWrapper:after, .cpClientIcon:focus .imageWrapper:focus .imageWrapper:after, .cpClientIcon:focus .imageWrapper:active .imageWrapper:after, .cpClientIcon:active .imageWrapper:hover .imageWrapper:after, .cpClientIcon:active .imageWrapper:focus .imageWrapper:after, .cpClientIcon:active .imageWrapper:active .imageWrapper:after {
  background: transparent;
}

/* Clients Page */
.cpClientIcon {
  background: #fff;
}

.cpClientIcon.ClientIcon {
  width: 100%;
}

.cpClientIcon.ClientIcon ul li {
  width: 25%;
  display: inline-block;
  padding: 0;
  margin: 0;
  float: left;
}

.cpClientIcon.ClientIcon ul li.imageWrapper {
  position: relative;
}

.cpClientIcon.ClientIcon ul li.imageWrapper span {
  position: absolute;
  bottom: 0;
  opacity: 0;
  transform: translate(-50%, 0);
  left: 50%;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  width: 100%;
  text-align: center;
  padding: 1em 0;
  transition: all 0.5s ease;
}

.cpClientIcon.ClientIcon ul li.imageWrapper:hover span {
  opacity: 1;
}

.cpClientIcon.ClientIcon ul li img {
  width: 100%;
  height: auto;
}

https://jsfiddle.net/dfLk3gy5/

Answer 1

为 UL 设置悬停规则，将所有子 LI 元素设置为所需的淡出不透明度，然后为 LI 设置悬停规则，将不透明度设置回完全不透明：

ul:hover li {
  opacity: 0.5;
}

ul:hover li:hover {
  opacity: 1;
}

示例： https://jsfiddle.net/kgow697h/

Answer 2

你也可以使用 mix-blend-mode :

 li a {
   background: rgba(255, 255, 255, 0.5);
   display: inline-block;
   width:100%;
 }
 
 li * {
   mix-blend-mode: soft-light;
 }
 
 li:hover * {
   mix-blend-mode: unset;
 }
li {display:inline-block;width:20%;}
img {max-width:100%;}

<div class="stPage st">
    <div class="gpClientIcons">
        <div class="cpClientIcon ClientIcon">
            <ul>
                <li class="imageWrapper"> <a href="/work/angostura-1919">
                    <img src="http://good.dev.good-creative.com/sites/default/files/styles/client_logo/public/CLIENT_LOGOS_WHITE_BG_24_ANGOSTURA.png?itok=TxAkk1y-"/>
                              </a>
 <a href="/work/angostura-1919"><span>View Case Study</span></a>

                </li>
                <li class="imageWrapper"> <a href="/work/fyne-ales">
                    <img src="http://good.dev.good-creative.com/sites/default/files/styles/client_logo/public/03_1.png?itok=NRCjw1SJ"/>
                              </a>
 <a href="/work/fyne-ales"><span>View Case Study</span></a>

                </li>
                <li class="imageWrapper"> <a href="/work/glengoyne">
                    <img src="http://good.dev.good-creative.com/sites/default/files/styles/client_logo/public/01_.png?itok=ib3J3BkM"/>
                              </a>
 <a href="/work/glengoyne"><span>View Case Study</span></a>

                </li>
                <li class="imageWrapper"> <a href="/work/okells">
                    <img src="http://good.dev.good-creative.com/sites/default/files/styles/client_logo/public/01_.png?itok=ib3J3BkM"/>
                              </a>
 <a href="/work/okells"><span>View Case Study</span></a>

                </li>
                <li class="imageWrapper"> <a href="/work/rrspink-sons">
                              <img src="http://good.dev.good-creative.com/sites/default/files/styles/client_logo/public/03_1.png?itok=NRCjw1SJ">
                              </a>
 <a href="/work/rrspink-sons"><span>View Case Study</span></a>

                </li>
                <li class="imageWrapper"> <a href="/work/tamdhu">
                              <img src="http://good.dev.good-creative.com/sites/default/files/styles/client_logo/public/01_.png?itok=ib3J3BkM">
                              </a>
 <a href="/work/tamdhu"><span>View Case Study</span></a>

                </li>
            </ul>
        </div>
    </div>
</div>

可以对 li 内的任何元素或仅对 img 执行此操作：https://jsfiddle.net/dfLk3gy5/1/

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