Bootstrap Carousel Captions

Question

我在一个单页网站中使用Bootstrap轮播作为页面背景，具有视差效果。

除了一个问题外，它运作良好。标题显示在页面的视差部分。向下滚动页面后，是否有任何方法可以使标题消失？

            <div id="myCarousel" class="carousel slide" data-ride="carousel">
            <!-- Indicators  -->
            <ol class="carousel-indicators">
                <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
                <li data-target="#myCarousel" data-slide-to="1"></li>
                <li data-target="#myCarousel" data-slide-to="2"></li>
            </ol>
            <!-- Wrapper for slides -->
            <div class="carousel-inner" role="listbox">
                <div class="item active">
                    <img src="images/Image-1.jpg" alt="Image 1">
                    <div class="carousel-caption">
                        <h3>Caption 1 goes here </h3>
                    </div>
                </div>

                <div class="item">
                    <img src="images/Image-2.jpg" alt="Image 2">
                    <div class="carousel-caption">
                        <h3>Caption 2 goes here </h3>
                    </div>
                </div>

                <div class="item">
                    <img src="images/Image-3.jpg" alt="Image 3">
                    <div class="carousel-caption">
                        <h3>Caption 3 goes here</h3>
                    </div>
                </div>

            </div>

            <!-- Left and right controls -->
            <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
                <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
                <span class="sr-only">Previous</span>
            </a>
            <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
                <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
                <span class="sr-only">Next</span>
            </a>
        </div>


.carousel{
    height:700px;
}

.carousel .item {
 position:fixed;
 left:0 !important;
width: 100%; 
height:100%;
}

    .carousel-inner img{
    width: 100%; /* Set width to 100% */
  margin: auto;
}

.carousel-caption h3 {
    font-size:xx-large;
 }

.carousel-caption {
    top: 70%; 
    bottom:auto; 
}

Answer 1

如果我做对了，那你的问题就是你的问题。

.carousel-caption {
    top: 70%; 
    bottom:auto; 
}

使70％的东西像40％或只是50px;