背景img模糊- css

Question

你好，亲爱的开发者，

我想模糊的背景图像在hovering.but上，它不工作。有人能帮我吗？我试过很多种方法。这是一个盒子，我用魔杖模糊背葫芦，显示悬停效果的文本。当前，当鼠标在方框上时，会发生以下情况:背景变得模糊，但文本不显示；或者:文本出现，但背景不会模糊。

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HTML

<div class="kursContainer">
        <div class="BodyKurs">
                <h1>Body</h1>
                <picture>
                    <img src="../Kurse/img/body.webp" alt="zumba">
                </picture>
            <div class="overlay">
                <h2>Body</h2>
                <h3>Abnehmen - 6 Wochen</h3>
                <h4>Lorem ipsum dolor sit amet, consectetur adipiscing     elit</h4>
            </div>
        </div>

CSS

.kursContainer {
  display: grid;
  justify-content: space-evenly;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 1em;
  justify-items: center;
  width: 122vmin;
  margin: 2vmin auto;
  align-items: center;

  grid-template-areas:
    "body body fatburn"
    "body body zumba"
    "yoga sixpack sixpack"
    "step sixpack sixpack"
    "backwork backwork tourde"
    "backwork backwork booty";
 }
 .BodyKurs{
   position: relative;
   width: 80vmin;
   height: 80vmin;
   border-radius: 10px;
   background-color: var(--schwarz);
   transition: transform 0.2s;
 }

.BodyKurs img{
   width: 80vmin;
   border-radius: 10px;
}
 .BodyKurs h1 {
   position: absolute;
   text-align: start;
   padding-left: 3vmin;
   bottom: 1vmin;
   color: var(--hellGrau);
   font-size: 8vmin;
 }

 .BodyKurs:hover {
    box-shadow: 0 0px 4.6px rgba(0, 0, 0, 0.278),
     0 0px 15.4px rgba(0, 0, 0, 0.411), 0 0px 69px rgba(0, 0, 0, 0.69);
   transform: scale(1.05);
   z-index: 2;
   cursor: pointer;
 }

  .overlay {
  width: 80vmin;
  height: 80vmin;
  position: absolute;
  text-align: center;
  bottom: 0;
  border-radius: 10px;
  color: var(--hellGrau);
  transition: 0.3s all;
  /* background: rgba(0, 0, 0, 0.2); */
  visibility: hidden;
   cursor: pointer;
  z-index: 5;
}
 .overlay:hover {
  visibility: visible;
}

picture:hover {
  filter: blur(5px);
}

Answer 1

您可以使用:not(:hover)样式

示例1:

​

.wrap:hover img,
.wrap:hover img:not(:hover) {
    filter: blur(3px);
}

.wrap {
    width: 300px;
}

span {
    position: absolute;
    color: #ffffff;
    z-index: 1;
    text-align: center;
    width: 300px;
    display: none;
}

.wrap:hover span {
    display: block;
}

<div class='wrap'>
    <span>
        <h1>Lorem</h1>
        <p>Text</p>
    </span>
    <img src="https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcRK7bvAryKdY7JSlepTHatE1A4nAVU5lJXkdw&usqp=CAU"
        width="300px">
</div>

​

这个例子更多一些CSS，但我认为它更容易理解。再次使用:not(:hover)，但这次在span元素上使用。

示例2:

​

.wrap:hover img,
.wrap:hover span:not(:hover) {
    filter: blur(3px);
}

.wrap {
    position: relative;
    width: 300px;
    overflow: hidden;
}

span {
    position: absolute;
    top: 0px;
    right: 0px;
    bottom: 0px;
    left: 0px;
    color: #ffffff;
    z-index: 1;
    text-align: center;
    display: none;
}

.wrap:hover span {
    display: block;
}

<div class='wrap'>
    <span>
        <h1>Lorem</h1>
        <p>Text</p>
    </span>
    <img src="https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcRK7bvAryKdY7JSlepTHatE1A4nAVU5lJXkdw&usqp=CAU"
        width="300px">
</div>

​

Answer 2

只需尝试从正文中移除图片标记，只需使用CSS背景图像属性即可。在rgba单元中设置重叠的背景颜色，如下所示：

<div class="kursContainer">
        <div class="BodyKurs">
                <h1>Body</h1>
            <div class="overlay">
                <h2>Body</h2>
                <h3>Abnehmen - 6 Wochen</h3>
                <h4>Lorem ipsum dolor sit amet, consectetur adipiscing     elit</h4>
            </div>
        </div>
</div>

CSS

.kursContainer {
  display: grid;
  justify-content: space-evenly;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 1em;
  justify-items: center;
  width: 122vmin;
  margin: 2vmin auto;
  align-items: center;

  grid-template-areas:
    "body body fatburn"
    "body body zumba"
    "yoga sixpack sixpack"
    "step sixpack sixpack"
    "backwork backwork tourde"
    "backwork backwork booty";
 }
 .BodyKurs{
   position: relative;
   width: 80vmin;
   height: 80vmin;
   border-radius: 10px;
   background-color: var(--schwarz);
   transition: transform 0.2s;
   background-image: url("../Kurse/img/body.webp");
 }

.BodyKurs img{
   width: 80vmin;
   border-radius: 10px;
}
 .BodyKurs h1 {
   position: absolute;
   text-align: start;
   padding-left: 3vmin;
   bottom: 1vmin;
   color: var(--hellGrau);
   font-size: 8vmin;
 }

 .BodyKurs:hover {
    box-shadow: 0 0px 4.6px rgba(0, 0, 0, 0.278),
     0 0px 15.4px rgba(0, 0, 0, 0.411), 0 0px 69px rgba(0, 0, 0, 0.69);
   transform: scale(1.05);
   z-index: 2;
   cursor: pointer;
 }

  .overlay {
  width: 80vmin;
  height: 80vmin;
  position: absolute;
  text-align: center;
  bottom: 0;
  border-radius: 10px;
  color: var(--hellGrau);
  transition: 0.3s all;
  /* background: rgba(255, 255, 255, 0.3); */
   cursor: pointer;
  z-index: 5;
}
 .overlay:hover {
  background-color: rgba(255, 255, 255, 0.5);
}

picture:hover {
  filter: blur(5px);
}