Question

我学会了制作一个可以从youtube上搜索视频的应用。问题是当浏览器获取结果并显示html的高度时，body，.wrapper不会改变。它保持不变。我希望它能够达到最高水平。这是代码。请帮助我从2天开始就被困在这里。

HTML

    <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Youtube Search Engine</title>
    <link rel="stylesheet" href="bootstrap.min.css">
    <link rel="stylesheet" href="style.css">
</head>
<body>
<div class="wrapper">
<div class="container" id="main">
<header>
    <h1>YoutuSearch</h1>
</header>
<form class="form" role="form">
    <div class="form-group">
      <label class="sr-only" for="query">Search:</label>
      <input type="text" class="form-control" id="query" placeholder="Search Video" required name="query" autofocus autocomplete="off" autosave="off" autocorrect="off" />
    </div>
    <button type="submit" class="btn">Submit</button>
  </form>
  </div>
  <div class="container results">
    <ul>

    </ul>
  </div>
  <footer>
    &copy;YoutoSearch <span class="year"></span>
  </footer>
</div>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="script.js"></script>
</body>
</html>

CSS

@import url(https://fonts.googleapis.com/css?family=Raleway);
html,body,.wrapper {
    height: 100vh;
}
body {
    background:url(youtube.jpg) center center no-repeat fixed;
    font-family: 'Raleway', sans-serif;
}
.wrapper,#main,.results {
    position: relative;
}
.wrapper {
    background-color: rgba(0,0,0,0.7);
}
.results {
    display: none;
    border-top: 1px solid #666;
    background-color: rgba(255,255,255,0.9);
    width: 100%;
}
.searched {
    top:5% !important;
}
#main {
    transition:all .5s;
    top:30%;
}
.results ul {
    display: block;
    width: 100%;
}
.results ul li {
    list-style-type: none;
}
.results {
    top:10%;
}
header {
    color: #fff;
    margin-left: 40%;
}
footer {
    color: #fff;
    position: absolute;
    bottom: 1%;
    left: 45%;
}
button[type=submit] {
    width: 100%;
    padding: 1%;
    background: #fd583f;
    color: #fff;
}
button[type=submit]:hover {
    opacity: 0.9;
}
input {
    padding: 2% !important;
    font-size: 1.2em !important;
}

JS

    $(document).ready(function() {
    $('.year').text(new Date().getFullYear());
    $('form').submit(function(e) {
        e.preventDefault();     
        search();
        $('#main').addClass('searched');
        $('.results').fadeIn();
    });

    function search() {
        q = $('#query').val();
        $('.results ul').html('');
        $.get(
            "https://www.googleapis.com/youtube/v3/search",
            {
                part: 'snippet, id',
                q:q,
                type:'video',
                key:'AIzaSyBPCOibwlo4tn7UirAFYZIG-JMTheo7uJ8',
            },
            function(data) {
                var nextPageToken = data.nextPageToken;
                var prevPageToken = data.prevPageToken;
                console.log(data);
                $.each(data.items,function(i,item) {
                var videoId = item.id.videoId;
                var title = item.snippet.title;
                var description = item.snippet.description;
                var thumb = item.snippet.thumbnails.high.url;
                var channelTitle = item.snippet.channelTitle;
                var videoDate = item.snippet.publishedAt;
                var output = "<li>" +
                    "<div class='pull-left'>" +
                    "<img src='" + thumb + "' />" +
                    "</div>" + 
                    "<div class='description'>" +
                    "<h3>"+ title + "</h3>" +
                    "<small>By <span class='cTitle'>"+channelTitle+"</span>" + "on " + videoDate + "</small>" +
                    "<p>"+description+"</p>" +
                    "</div>" +
                    "</li>" +
                    "<div class='clearfix'></div>";
        $('.results ul').append(output);
            })
        }

        )
                        }

})

Answer 1

将身高变为自动，如下图所示，将页脚位置更改为相对位置。

body{
height:auto
}
footer{
  position: relative;
  left: 45%;
bottom:1%;
}

Answer 2

像这样更改这些规则

Updated codepen（以下规则）

/*  removed html, body - not needed in this rule  */
.wrapper {
  min-height:100vh;
  padding-bottom: 22px;    /* compensate for footer so it does not disappear behind search result */
}

header {
  color: #fff;
  text-align: center;   /* keep text centered at different width's */
}

footer {
  text-align: center;
  position: absolute;
  height: 22px;
  bottom: 0;
  width: 100%;
}

窗户的高度不会改变

2 个答案: