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javascript - 如何使图像适合板内

问题描述

我有代码，其中有类框，我已经给backgroundimage了class box box1.

我的问题是图像没有正确地适合电路板内部。当我调整窗口大小时，它正在向上移动。如何纠正它？

如何在不从主背景中提取板元素并将其单独用作元素的情况下使图像正确地适合板内而不失去响应能力？

这是执行此操作的方法，当我尝试将其安装在板内时，它不仅安装在盒子内，而且还失去了响应能力。

html, body {
 background-image:url(https://i.ibb.co/K7mpxZG/background9.jpg);
 background-repeat: no-repeat;
 background-size: cover;
 width:100%;
 height:100%;
 overflow: hidden;
 background-size: 100vw 100vh;
}

#box1 {
  position: absolute;
  top: 55.3vh;
  left: -19.98vw;
  cursor: pointer;
  border:px solid #0066CC;
  background-repeat: no-repeat;
  background-size: cover;
}

#box1 p {
  width: 10.0vw;
 height: 1.0vh;
  border-radius: 25%;
}


#container {
  white-space: nowrap;
  border:px solid #CC0000;
}

.containerr {
  border: px solid #FF3399;
}

.container2 {
  width: 50.1vw;
  position: fixed;
  top: 10.5vh;
  left: 30.5vw;
}

.box p {
  font-size: calc(2vw + 10px);
}


.hidden{
  visibility: hidden;
}

p {
  font: "Courier New", Courier, monospace;
  font-size: 5vw;
  color: blue;
  text-align: center;
}
<div class="container2">
  <div class="containerr">
    <div class="pic" id="content">
      <div id="container">
      
        <div class="box box1" id="box1"  style="background-image:url(https://picsum.photos/200/300);">
          <p name="values" id="name1" class="hidden"></p>
        </div>

      </div>
    </div>
  </div>

标签： javascripthtmlcss

解决方案

如果您设置为子级，则添加position: relative;到（父级）#container.container2position:absolute

见小提琴 

html, body {
 background-image:url(https://i.ibb.co/K7mpxZG/background9.jpg);
 background-repeat: no-repeat;
 background-size: cover;
 width:100%;
 height:100%;
 overflow: hidden;
 background-size: 100vw 100vh;
}

#box1 {
  position: absolute;
  top: 55.3vh;
  left: -19.98vw;
  cursor: pointer;
  border:px solid #0066CC;
  background-repeat: no-repeat;
  background-size: cover;
}

#box1 p {
  width: 10.0vw;
 height: 1.0vh;
  border-radius: 25%;
}


#container {
  white-space: nowrap;
  border:px solid #CC0000;
position: relative;
}

.containerr {
  border: px solid #FF3399;
}

.container2 {
  width: 50.1vw;
  position: fixed;
  top: 10.5vh;
  left: 30vw;
  position: relative;
}

.box p {
  font-size: calc(2vw + 10px);
}


.hidden{
  visibility: hidden;
}

p {
  font: "Courier New", Courier, monospace;
  font-size: 5vw;
  color: blue;
  text-align: center;
}
<div class="container2">
  <div class="containerr">
    <div class="pic" id="content">
      <div id="container">
      
        <div class="box box1" id="box1"  style="background-image:url(https://picsum.photos/200/300);">
          <p name="values" id="name1" class="hidden"></p>
        </div>

      </div>
    </div>
  </div>

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