如何制作Flexdiv并將其（影像）子項包含在其父項中？-有解無憂

我正在嘗試制作一個回應式影像網格，但我似乎無法使其作業。影像回應最大高度和最大寬度，但父 div 沒有占用它們的全寬（因此不包含在它的父級中）或者影像沒有最大高度和max-width，它們的父 div 具有正確的寬度，但沒有回應。我希望我已經明確了我的問題和我的目標。誰能闡明我如何實作這一目標？

JSFiddle

#grid_area {
    display: flex;
    height: 100%;
    width: 100%;
    position: absolute;
    align-content: center;
    justify-content: center;
    align-items: center;
}

#grid {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    height: 80%;
    width: 50%;
}

img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.row {
  display: flex;
  flex-direction: row;
}

<!DOCTYPE html>
<html>

<head>
</head>

<body>
    <div id="grid_area">
        <div id="grid">
            <div class="row" id="0">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="A1">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="B1">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="C1">
            </div>
            <div class="row" id="1">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="A2">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="B2">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="C2">
            </div>
            <div class="row" id="2">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="A3">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="B3">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="C3">
            </div>
            <div class="row" id="3">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="A4">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="B4">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="C4">
            </div>
        </div>
    </div>
</body>


</html>

uj5u.com熱心網友回復：

您可以使用 CSS 網格。給max-width: (x)px你的.grid-area。

比在您的網格區域中，您可以創建一個 4x3 網格

display: grid;
grid-template-rows: repeat(4, 1fr);
grid-template-columns: repeat(3, 1fr);

比您作為孩子添加的每個影像都會在網格中找到一個位置。

grid-column您可以使用和grid-row屬性更改 Grid 內的影像位置。

所以我改變#A1影像在網格內的位置

#A1 {
grid-column: 2 / 3;
grid-row: 2/ 3;
}

https://www.w3schools.com/css/css_grid.asp

img {
  max-width: 100%;
  display: block;
}

body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  line-height: 1.5;
}

.grid_area {
  height: 100%;
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  grid-template-columns: repeat(3, 1fr);
}

#A1 {
  grid-column: 2 / 3;
  grid-row: 2/ 3;
}

<div class="grid_area">
      <img src="https://source.unsplash.com/random/460x345/" id="A1" />
      <img src="https://www.w3schools.com/css/img_chania.jpg" id="B1" />
      <img src="https://www.w3schools.com/css/img_chania.jpg" id="C1" />

      <img src="https://www.w3schools.com/css/img_chania.jpg" id="A2" />
      <img src="https://www.w3schools.com/css/img_chania.jpg" id="B2" />
      <img src="https://www.w3schools.com/css/img_chania.jpg" id="C2" />

      <img src="https://www.w3schools.com/css/img_chania.jpg" id="A3" />
      <img src="https://www.w3schools.com/css/img_chania.jpg" id="B3" />
      <img src="https://www.w3schools.com/css/img_chania.jpg" id="C3" />

      <img src="https://www.w3schools.com/css/img_chania.jpg" id="A4" />
      <img src="https://www.w3schools.com/css/img_chania.jpg" id="B4" />
      <img src="https://www.w3schools.com/css/img_chania.jpg" id="C4" />
    </div>

uj5u.com熱心網友回復：

檢查這個片段->

* {
  margin: 0;
  padding: 0;
}
html,body {
  width:100%;
  height: 100%;
  box-sizing: border-box;
}
#grid_area {
    display: flex;
    height: 100%;
    width: 100%;
    position: relative;
    align-content: center;
    justify-content: center;
    align-items: center;
    background-color: #aaa;
}

#grid {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    height: 80%;
    width: 50%;
    padding: 10px;
    background-color: #fff;
    overflow-y: scroll;
}

img {
  max-width: calc(100% / 3);
  max-height: 100%;
  object-fit: contain;
}

.row {
  display: flex;
  flex-direction: row;
}

@media (max-width: 600px) {
    img {
      max-width: calc(100%);
    }
}

<!DOCTYPE html>
<html>

<head>
</head>

<body>
    <div id="grid_area">
        <div id="grid">
            <div class="row" id="0">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="A1">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="B1">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="C1">
            </div>
            <div class="row" id="1">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="A2">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="B2">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="C2">
            </div>
            <div class="row" id="2">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="A3">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="B3">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="C3">
            </div>
            <div class="row" id="3">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="A4">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="B4">
                <img src="https://www.w3schools.com/css/img_chania.jpg" id="C4">
            </div>
        </div>
    </div>
</body>


</html>

希望這會奏效。

uj5u.com熱心網友回復：

夫婦的事情。從父級中洗掉absolute定位，#grid_area因為這在擴展設計時會出現問題。

width: 50%;沒有足夠的空間容納您的內容。我會完全洗掉寬度，讓它根據您的內容呈現寬度。

#grid_area {
  display: flex;
  height: 100%;
  width: 100%;
  align-content: center;
  justify-content: center;
  align-items: center;
}

#grid {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 80%;
}

img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.row {
  display: flex;
  flex-direction: row;
}

<!DOCTYPE html>
<html>

<head>
</head>

<body>
  <div id="grid_area">
    <div id="grid">
      <div class="row" id="0">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="A1">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="B1">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="C1">
      </div>
      <div class="row" id="1">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="A2">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="B2">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="C2">
      </div>
      <div class="row" id="2">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="A3">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="B3">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="C3">
      </div>
      <div class="row" id="3">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="A4">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="B4">
        <img src="https://www.w3schools.com/css/img_chania.jpg" id="C4">
      </div>
    </div>
  </div>
</body>


</html>

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