缩小时 jumbotron 和内容之间的边距增加 window

Question

我非常接近最终让我的 jumbotron 图像在调整较小时缩小以适合视口，但现在当我这样做时，它会增加底部边距，我做得越小。容易修复？

HTML

<div class="jumbotron">
    <div class="container">
    </div>
</div>

<div class="container">
    <div class="row">
        <div class="col-md-6">
            <h1>Over 27,000,000</h1>
            <h4>is the current estimate of slaves worldwide. More than at any point in human history. Every 30 seconds, another person falls victim to the human trafficking industry. Often these slaves are kidnapped or sold by families under desperate circumstances. As the demand to exploit men, women and children for manual and sexual labor increases, the average age of victims continues to fall.</h4>
            <h2>We believe</h2>
            <h4>these statistics are unacceptable. These are not mere numbers, they represent lost and stolen human lives, lives which we are relentlessly fighting for. Together we are investing our lives, devoting our unique skills and resources to bring justice and freedom to those that desperately need it, both locally, here in Buena Vista, CO, and globally. </h4>
            <br>
            <h4>Get involved and be their voice!</h4>
        </div>
    </div>
</div>

CSS

.jumbotron {
    background-image:url('http://4.bp.blogspot.com/-CIy9X0Vwlko/VFvyStJbP_I/AAAAAAAACys/Ze7QVlcVmX0/s1600/HOPE%2BLogo%2Bcopy.jpg');
    height: 600px;
    background-repeat: no-repeat;
    background-size: contain;
    background-color: #FFFFFF;
    position: relative;
}
.jumbotron .container {
    position: relative;
    top:100px;
}
.jumbotron h1 {
      color: #fff;
      font-size: 60px;  
      font-family: 'Love Ya Like A Sister', cursive;
      font-weight: bold;
}
.jumbotron p {
    font-size: 30px;
    color: #A80000;
}

Answer 1

看来我可以使用另一个答案中的 background size: 100% 100%。它扭曲图像超过 contain 但我可以忍受它。

Answer 2

我把你的代码搞得一团糟。 .jumbotron 的 height: 600px 正在放弃它。这就是我认为您正在寻找的...让我知道。

@media screen and (max-width: 900px) {
  body .jumbotron {
    background-size: 900px;
    background-position: left -50px center;
  }
}
.jumbotron {
    padding: 0;
  height: 90vmin; /* Here you can change the height */
  width: 100%;
    background-image:url('http://4.bp.blogspot.com/-CIy9X0Vwlko/VFvyStJbP_I/AAAAAAAACys/Ze7QVlcVmX0/s1600/HOPE%2BLogo%2Bcopy.jpg');
    background-repeat: no-repeat;
    background-size: 100%;
    background-color: #efeeec;
  background-position: left center;
  overflow: hidden;
    position: relative;
}
.jumbotron h1 {
      color: #fff;
      font-size: 60px;  
      font-family: 'Love Ya Like A Sister', cursive;
      font-weight: bold;
}
.jumbotron p {
    font-size: 30px;
    color: #A80000;
}

<div class="jumbotron">
</div>

<div class="container">
    <div class="row">
        <div class="col-md-6">
            <h1>Over 27,000,000</h1>
            <h4>is the current estimate of slaves worldwide. More than at any point in human history. Every 30 seconds, another person falls victim to the human trafficking industry. Often these slaves are kidnapped or sold by families under desperate circumstances. As the demand to exploit men, women and children for manual and sexual labor increases, the average age of victims continues to fall.</h4>
            <h2>We believe</h2>
            <h4>these statistics are unacceptable. These are not mere numbers, they represent lost and stolen human lives, lives which we are relentlessly fighting for. Together we are investing our lives, devoting our unique skills and resources to bring justice and freedom to those that desperately need it, both locally, here in Buena Vista, CO, and globally. </h4>
            <br>
            <h4>Get involved and be their voice!</h4>
        </div>
    </div>
</div>

缩小时 jumbotron 和内容之间的边距增加 window

Margin between jumbotron and content increases when shrinking window

css

sizing

twitter-bootstrap