为什么 Padding/Margin-bottom 无法处理图像？

Question

我想要实现的是让 div "dimg2" 中的图像与 h3 元素位于同一行。我已经在 img 和 div 上尝试了 block 和 inline-block 显示选项。我已经尝试了 padding/margin 底部但没有任何效果。我只是想将图像向上移动。它随着 padding-top 下降，但不会随着 padding-bottom 上升。

html,
body {
  margin: 0px 0px 0px 0px;
  background: whitesmoke;
}

header {
  width: 100%;
  height: 40px;
  display: flex;
}

img {
  width: 40px;
  height: 30px;
  padding-left: 100px;
  position: relative;
}

h3 {
  margin: 0;
}

h4 {
  padding-left: 3px;
  position: relative;
}

ul {
  width: 100%;
  display: flex;
  list-style: none;
  justify-content: flex-end;
}

ul li {
  padding-right: 100px;
}

.btn {
  background-color: #5AB7FF;
  border: 1px solid #5AB7FF;
  font-size: 20px;
  border-radius: 25%;
  padding: 15px;
}

.btn2 {
  background-color: white;
  border: 1px solid #5AB7FF;
  font-size: 20px;
  border-radius: 25%;
  padding: 15px;
}

.fheader {
  width: 100%;
  display: flex;
  height: 2000px;
  padding-top: 100px;
  padding-left: 100px;
}

.img2 {
  width: 500px;
  height: 500px;
  margin-bottom: 400px;
}

.dimg2 {
  padding-left: 610px;
  padding-bottom: 300px;
}

<header>
  <img src="./resources/images/wave.png" alt="wave">
  <h4 style="color: #5AB7FF;">Fusion.</h4>
  <ul>
    <li style="color: #5AB7FF;">Home</li>
    <li>Services</li>
    <li>Team</li>
    <li>Pricing</li>
    <li>Testimonial</li>
    <li>Contact</li>
  </ul>
</header>

<section>
  <div class="fheader">
    <div class="fcontent">
      <h3>App, Business&Saas Landing Page Template</h3>
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.
         Quisque viverra ligula nunc, ut<br>
         lacinia neque tincidunt at.
         Integer congue hendrerit elit, quis feugiat enim tristique.<br>
         Pellentesque nec urna nisi.
      </p>
      <button class="btn">Download</button> <button class="btn2">Learn More</button>
    </div>
    <div class="dimg2">
      <img class="img2" src="./resources/images/app.png" alt="building an app">
    </div>
  </div>
</section>

基本上试图让它看起来像这样：

Answer 1

尝试在其中之一上使用绝对位置并改变其自身的位置... https://www.w3schools.com/css/css_positioning.asp

Answer 2

检查 Div、p 和 h3 元素的用法。 Div,p 和 h3 都以块的形式显示内容，如果你想让你的图像在同一行上，那么你必须在网格中制作它。我建议对网格使用 bootstarp。 https://www.w3schools.com/bootstrap/

Answer 3

fcontent class 还不是 "inline block"，并且没有宽度属性，使其自动成为其父级 (fheader) 的 100% 并且不留空间dimg2。如果你解决了这个问题，你就不再需要在 dimg2 上填充了。替换：

      .img2 {
          width: 500px;
          height: 500px;
          margin-bottom: 400px;
      }

      .dimg2 {
          position: absolute;
          display: inline-block;
      }
      .fcontent{
        width:50%;
  display: inline-block;
  padding-top:0px;
      }

Answer 4

<!DOCTYPE html>
<html>
    <head>
        <title>FUSION</title>
        <link rel="stylesheet" href="./resources/css/styles.css" type="text/css">
    </head>
    <body>
        <header>
            <img src="./resources/images/wave.png" alt="wave">
            <h4 style= "color: #5AB7FF;">Fusion.</h4>
            <ul>
                <li style= "color: #5AB7FF;">Home</li>
                <li>Services</li>
                <li>Team</li>
                <li>Pricing</li>
                <li>Testimonial</li>
                <li>Contact</li>
            </ul>
        </header>

        <section>
            <div class="fheader">
                <div class="fcontent">
                    <div class="dimg2">
                        <img class="img2" src="./resources/images/app.png" alt="building an app">
                    </div>
                </div>
                <h3>App, Business&Saas Landing Page Template</h3>
                <p>
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque viverra ligula nunc, ut <br> lacinia neque tincidunt at. Integer congue hendrerit elit, quis feugiat enim tristique <br>. Pellentesque nec urna nisi. 
                </p>
                <button class="btn">Download</button> 
                <button class="btn2">Learn More</button>
             </div>
        </section>
    </body>
</html>

html, body {
    margin: 0px 0px 0px 0px;
}
header {
    width: 100%;
    height: 40px;
    display: flex;
}

img {
    width: 40px;
    height: 30px;
    padding-left: 100px;
    position: relative;
}

h4 {
    padding-left: 3px;
    position: relative;
}

ul {
    list-style: none;
    width: 100%;
    display: flex;
    justify-content: flex-end;
}

ul li {
    padding-right: 100px;
}

.btn {
    background-color: #5AB7FF;
    border: 1px solid #5AB7FF;
    font-size: 20px;
    border-radius: 25%;
    padding: 15px;

}

.btn2 {
    background-color: white;
    border: 1px solid #5AB7FF;
    font-size: 20px;
    border-radius: 25%;
    padding: 15px;

}

.fheader {
    width: 100%;
    height: 2000px;
    position: relative;
    padding-left: 100px;
    padding-top: 100px;
}

.img2 {
    width: 250px;
    height: 250px;
}

.dimg2 {
    float: right;
    position: relative; 
    display: inline-block;
}

为什么 Padding/Margin-bottom 无法处理图像？

Why is Padding/Margin-bottom Not Working On Image?

html

css

margin

sass

padding