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Javascript 中心导航项目引导CSS_Javascript_Jquery_Html_Css_Twitter Bootstrap - Fatal编程技术网

Javascript 中心导航项目引导CSS

Javascript 中心导航项目引导CSS,javascript,jquery,html,css,twitter-bootstrap,Javascript,Jquery,Html,Css,Twitter Bootstrap,我不知道如何使用引导将导航项目居中。我在这里研究了很多帖子,但我还是搞不懂。我已经有好几年没有用HTML和CSS编程了,所以我很生疏。我希望我能很快掌握这个窍门,因为像这样的小事真的让我很烦恼。我尝试了许多不同的方法,尝试了许多不同的简单教程,但我不能确切地知道我需要做什么。救命啊 CSS: HTML: 德克萨斯州博览会 其他展览 编辑:在index.html页面的顶部找到了这个CSS,我相信这就是我将导航栏项目居中的地方 /* CUSTOMIZE THE NA

我不知道如何使用引导将导航项目居中。我在这里研究了很多帖子,但我还是搞不懂。我已经有好几年没有用HTML和CSS编程了,所以我很生疏。我希望我能很快掌握这个窍门,因为像这样的小事真的让我很烦恼。我尝试了许多不同的方法,尝试了许多不同的简单教程,但我不能确切地知道我需要做什么。救命啊

CSS:

HTML:


    • 德克萨斯州博览会
    • 其他展览
编辑:在index.html页面的顶部找到了这个CSS,我相信这就是我将导航栏项目居中的地方

/* CUSTOMIZE THE NAVBAR
    -------------------------------------------------- */

    /* Special class on .container surrounding .navbar, used for positioning it into place. */
    .navbar-wrapper {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      z-index: 10;
      margin-top: 20px;
      margin-bottom: -90px; /* Negative margin to pull up carousel. 90px is roughly margins and height of navbar. */
    }
    .navbar-wrapper .navbar {

    }

    /* Remove border and change up box shadow for more contrast */
    .navbar .navbar-inner {
      border: 0;
      -webkit-box-shadow: 0 2px 10px rgba(0,0,0,.25);
         -moz-box-shadow: 0 2px 10px rgba(0,0,0,.25);
              box-shadow: 0 2px 10px rgba(0,0,0,.25);
    }

    /* Downsize the brand/project name a bit */
    .navbar .brand {
      padding: 14px 20px 16px; /* Increase vertical padding to match navbar links */
      font-size: 16px;
      font-weight: bold;
      text-shadow: 0 -1px 0 rgba(0,0,0,.5);
    }

    /* Navbar links: increase padding for taller navbar */
    .navbar .nav > li > a {
      padding: 15px 20px;
    }

    /* Offset the responsive button for proper vertical alignment */
    .navbar .btn-navbar {
      margin-top: 10px;
    }



    /* CUSTOMIZE THE CAROUSEL
    -------------------------------------------------- */

    /* Carousel base class */
    .carousel {
      margin-bottom: 60px;
    }

    .carousel .container {
      position: relative;
      z-index: 9;
    }

    .carousel-control {
      height: 80px;
      margin-top: 0;
      font-size: 120px;
      text-shadow: 0 1px 1px rgba(0,0,0,.4);
      background-color: transparent;
      border: 0;
      z-index: 10;
    }

    .carousel .item {
      height: 500px;
    }
    .carousel img {
      position: absolute;
      top: 0;
      left: 0;
      min-width: 100%;
      height: 500px;
    }

    .carousel-caption {
      background-color: transparent;
      position: static;
      max-width: 550px;
      padding: 0 20px;
      margin-top: 200px;
    }
    .carousel-caption h1,
    .carousel-caption .lead {
      margin: 0;
      line-height: 1.25;
      color: #fff;
      text-shadow: 0 1px 1px rgba(0,0,0,.4);
    }
    .carousel-caption .btn {
      margin-top: 10px;
    }



    /* MARKETING CONTENT
    -------------------------------------------------- */

    /* Center align the text within the three columns below the carousel */
    .marketing .span4 {
      text-align: center;
    }
    .marketing h2 {
      font-weight: normal;
    }
    .marketing .span4 p {
      margin-left: 10px;
      margin-right: 10px;
    }


    /* Featurettes
    ------------------------- */

    .featurette-divider {
      margin: 80px 0; /* Space out the Bootstrap <hr> more */
    }
    .featurette {
      padding-top: 120px; /* Vertically center images part 1: add padding above and below text. */
      overflow: hidden; /* Vertically center images part 2: clear their floats. */
    }
    .featurette-image {
      margin-top: -120px; /* Vertically center images part 3: negative margin up the image the same amount of the padding to center it. */
    }

    /* Give some space on the sides of the floated elements so text doesn't run right into it. */
    .featurette-image.pull-left {
      margin-right: 40px;
    }
    .featurette-image.pull-right {
      margin-left: 40px;
    }

    /* Thin out the marketing headings */
    .featurette-heading {
      font-size: 50px;
      font-weight: 300;
      line-height: 1;
      letter-spacing: -1px;
    }



    /* RESPONSIVE CSS
    -------------------------------------------------- */

    @media (max-width: 979px) {

      .container.navbar-wrapper {
        margin-bottom: 0;
        width: auto;
      }
      .navbar-inner {
        border-radius: 0;
        margin: -20px 0;
      }

      .carousel .item {
        height: 500px;
      }
      .carousel img {
        width: auto;
        height: 500px;
      }

      .featurette {
        height: auto;
        padding: 0;
      }
      .featurette-image.pull-left,
      .featurette-image.pull-right {
        display: block;
        float: none;
        max-width: 40%;
        margin: 0 auto 20px;
      }
    }


    @media (max-width: 767px) {

      .navbar-inner {
        margin: -20px;
      }

      .carousel {
        margin-left: -20px;
        margin-right: -20px;
      }
      .carousel .container {

      }
      .carousel .item {
        height: 300px;
      }
      .carousel img {
        height: 300px;
      }
      .carousel-caption {
        width: 65%;
        padding: 0 70px;
        margin-top: 100px;
      }
      .carousel-caption h1 {
        font-size: 30px;
      }
      .carousel-caption .lead,
      .carousel-caption .btn {
        font-size: 18px;
      }

      .marketing .span4 + .span4 {
        margin-top: 40px;
      }

      .featurette-heading {
        font-size: 30px;
      }
      .featurette .lead {
        font-size: 18px;
        line-height: 1.5;
      }

    }
    </style>
/*自定义导航栏
-------------------------------------------------- */
/*特殊类别。容器周围。导航栏,用于将其定位到位*/
.导航栏包装{
位置:绝对位置;
排名:0;
左:0;
右:0;
z指数:10;
边缘顶部:20px;
边距底部:-90px;/*向上拉转盘的负边距。90px大致是边距和导航栏的高度*/
}
.navbar包装器.navbar{
}
/*删除边框,并将框阴影向上更改以获得更多对比度*/
.导航栏.导航栏内部{
边界:0;
-webkit盒阴影:0 2px 10px rgba(0,0,0,25);
-moz盒阴影:0 2px 10px rgba(0,0,0,25);
盒影:0 2px 10px rgba(0,0,0,25);
}
/*将品牌/项目名称缩小一点*/
.navbar.brand{
填充:14px 20px 16px;/*增加垂直填充以匹配导航栏链接*/
字体大小:16px;
字体大小:粗体;
文本阴影:0-1px0RGBA(0,0,0,5);
}
/*导航栏链接:增加较高导航栏的填充*/
.navbar.nav>li>a{
填充:15px 20px;
}
/*偏移响应按钮以进行适当的垂直对齐*/
.navbar.btn navbar{
边缘顶部:10px;
}
/*自定义旋转木马
-------------------------------------------------- */
/*旋转木马基类*/
旋转木马{
边缘底部:60px;
}
.传送带.集装箱{
位置:相对位置;
z指数:9;
}
.传送带控制{
高度:80px;
边际上限:0;
字体大小:120px;
文本阴影:0 1px 1px rgba(0,0,0,4);
背景色:透明;
边界:0;
z指数:10;
}
.carousel.项目{
高度:500px;
}
.旋转木马{
位置:绝对位置;
排名:0;
左:0;
最小宽度:100%;
高度:500px;
}
.旋转木马标题{
背景色:透明;
位置:静态;
最大宽度:550px;
填充:0 20px;
利润上限:200px;
}
.旋转木马标题h1,
.旋转木马标题.导语{
保证金:0;
线高:1.25;
颜色:#fff;
文本阴影:0 1px 1px rgba(0,0,0,4);
}
.carousel标题.btn{
边缘顶部:10px;
}
/*营销内容
-------------------------------------------------- */
/*将旋转木马下方三列内的文本居中对齐*/
.市场营销{
文本对齐:居中;
}
.市场推广h2{
字体大小:正常;
}
.市场营销{
左边距:10px;
右边距:10px;
}
/*特写
------------------------- */
.特征分割器{
边距:80px 0;/*留出引导空间
更多*/ } 特辑{ 顶部填充:120px;/*垂直居中图像第1部分:在文本上方和下方添加填充*/ 溢出:隐藏;/*垂直居中图像第2部分:清除其浮动*/ } .特色图片{ 页边距顶部:-120px;/*垂直居中图像第3部分:负页边距向上使图像居中的填充量相同*/ } /*在浮动元素的两侧留出一些空间,这样文本就不会直接进入其中*/ .featurette-image.pull-left{ 右边距:40px; } .featurette-image.pull-right{ 左边距:40px; } /*精简营销标题*/ .专题标题{ 字体大小:50px; 字体大小:300; 线高:1; 字母间距:-1px; } /*响应式CSS -------------------------------------------------- */ @介质(最大宽度:979px){ .container.navbar-wrapper{ 页边距底部:0; 宽度:自动; } .导航栏内部{ 边界半径:0; 利润率:-20px0; } .carousel.项目{ 高度:500px; } .旋转木马{ 宽度:自动; 高度:500px; } 特辑{ 高度:自动; 填充:0; } .featurette-image.pull-left, .featurette-image.pull-right{ 显示:块; 浮动:无; 最大宽度:40%; 保证金:0自动20px; } } @介质(最大宽度:767px){ .导航栏内部{ 利润率:-20px; } 旋转木马{ 左边距:-20px; 右边距:-20px; } .传送带.集装箱{ } .carousel.项目{ 高度:300px; } 旋转木马
<div class="navbar-wrapper">
      <!-- Wrap the .navbar in .container to center it within the absolutely positioned parent. -->
      <div class="container">

        <div class="navbar navbar-inverse">
          <div class="navbar-inner">
            <!-- Responsive Navbar Part 1: Button for triggering responsive navbar (not covered in tutorial). Include responsive CSS to utilize. -->
            <button type="button" class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
            </button>
            <img class="brand" source="assets/images/logo.jpg"></img>
            <!-- Responsive Navbar Part 2: Place all navbar contents you want collapsed withing .navbar-collapse.collapse. -->
            <div class="nav-collapse collapse">
              <ul class="nav">
                <li class="active"><a href="index.html">Home</a></li>
                <li><a href="contact.html">Contact</a></li>
                <!-- Read about Bootstrap dropdowns at http://twbs.github.com/bootstrap/javascript.html#dropdowns -->
                <li class="dropdown">
                  <a href="#" class="dropdown-toggle" data-toggle="dropdown">Expos <b class="caret"></b></a>
                  <ul class="dropdown-menu">
                    <li class="nav-header">Texas Expositions</li>
                    <li><a href="#">Longview</a></li>
                    <li><a href="#">Houston</a></li>
                    <li><a href="#">Austin</a></li>
                    <li><a href="#">Midland</a></li>
                    <li class="divider"></li>
                    <li class="nav-header">Other Expositions</li>
                    <li><a href="#">Louisiana</a></li>
                    <li><a href="#">Oklahoma</a></li>
                  </ul>
                </li>
              </ul>
            </div><!--/.nav-collapse -->
          </div><!-- /.navbar-inner -->
        </div><!-- /.navbar -->

      </div> <!-- /.container -->
    </div><!-- /.navbar-wrapper -->
/* CUSTOMIZE THE NAVBAR
    -------------------------------------------------- */

    /* Special class on .container surrounding .navbar, used for positioning it into place. */
    .navbar-wrapper {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      z-index: 10;
      margin-top: 20px;
      margin-bottom: -90px; /* Negative margin to pull up carousel. 90px is roughly margins and height of navbar. */
    }
    .navbar-wrapper .navbar {

    }

    /* Remove border and change up box shadow for more contrast */
    .navbar .navbar-inner {
      border: 0;
      -webkit-box-shadow: 0 2px 10px rgba(0,0,0,.25);
         -moz-box-shadow: 0 2px 10px rgba(0,0,0,.25);
              box-shadow: 0 2px 10px rgba(0,0,0,.25);
    }

    /* Downsize the brand/project name a bit */
    .navbar .brand {
      padding: 14px 20px 16px; /* Increase vertical padding to match navbar links */
      font-size: 16px;
      font-weight: bold;
      text-shadow: 0 -1px 0 rgba(0,0,0,.5);
    }

    /* Navbar links: increase padding for taller navbar */
    .navbar .nav > li > a {
      padding: 15px 20px;
    }

    /* Offset the responsive button for proper vertical alignment */
    .navbar .btn-navbar {
      margin-top: 10px;
    }



    /* CUSTOMIZE THE CAROUSEL
    -------------------------------------------------- */

    /* Carousel base class */
    .carousel {
      margin-bottom: 60px;
    }

    .carousel .container {
      position: relative;
      z-index: 9;
    }

    .carousel-control {
      height: 80px;
      margin-top: 0;
      font-size: 120px;
      text-shadow: 0 1px 1px rgba(0,0,0,.4);
      background-color: transparent;
      border: 0;
      z-index: 10;
    }

    .carousel .item {
      height: 500px;
    }
    .carousel img {
      position: absolute;
      top: 0;
      left: 0;
      min-width: 100%;
      height: 500px;
    }

    .carousel-caption {
      background-color: transparent;
      position: static;
      max-width: 550px;
      padding: 0 20px;
      margin-top: 200px;
    }
    .carousel-caption h1,
    .carousel-caption .lead {
      margin: 0;
      line-height: 1.25;
      color: #fff;
      text-shadow: 0 1px 1px rgba(0,0,0,.4);
    }
    .carousel-caption .btn {
      margin-top: 10px;
    }



    /* MARKETING CONTENT
    -------------------------------------------------- */

    /* Center align the text within the three columns below the carousel */
    .marketing .span4 {
      text-align: center;
    }
    .marketing h2 {
      font-weight: normal;
    }
    .marketing .span4 p {
      margin-left: 10px;
      margin-right: 10px;
    }


    /* Featurettes
    ------------------------- */

    .featurette-divider {
      margin: 80px 0; /* Space out the Bootstrap <hr> more */
    }
    .featurette {
      padding-top: 120px; /* Vertically center images part 1: add padding above and below text. */
      overflow: hidden; /* Vertically center images part 2: clear their floats. */
    }
    .featurette-image {
      margin-top: -120px; /* Vertically center images part 3: negative margin up the image the same amount of the padding to center it. */
    }

    /* Give some space on the sides of the floated elements so text doesn't run right into it. */
    .featurette-image.pull-left {
      margin-right: 40px;
    }
    .featurette-image.pull-right {
      margin-left: 40px;
    }

    /* Thin out the marketing headings */
    .featurette-heading {
      font-size: 50px;
      font-weight: 300;
      line-height: 1;
      letter-spacing: -1px;
    }



    /* RESPONSIVE CSS
    -------------------------------------------------- */

    @media (max-width: 979px) {

      .container.navbar-wrapper {
        margin-bottom: 0;
        width: auto;
      }
      .navbar-inner {
        border-radius: 0;
        margin: -20px 0;
      }

      .carousel .item {
        height: 500px;
      }
      .carousel img {
        width: auto;
        height: 500px;
      }

      .featurette {
        height: auto;
        padding: 0;
      }
      .featurette-image.pull-left,
      .featurette-image.pull-right {
        display: block;
        float: none;
        max-width: 40%;
        margin: 0 auto 20px;
      }
    }


    @media (max-width: 767px) {

      .navbar-inner {
        margin: -20px;
      }

      .carousel {
        margin-left: -20px;
        margin-right: -20px;
      }
      .carousel .container {

      }
      .carousel .item {
        height: 300px;
      }
      .carousel img {
        height: 300px;
      }
      .carousel-caption {
        width: 65%;
        padding: 0 70px;
        margin-top: 100px;
      }
      .carousel-caption h1 {
        font-size: 30px;
      }
      .carousel-caption .lead,
      .carousel-caption .btn {
        font-size: 18px;
      }

      .marketing .span4 + .span4 {
        margin-top: 40px;
      }

      .featurette-heading {
        font-size: 30px;
      }
      .featurette .lead {
        font-size: 18px;
        line-height: 1.5;
      }

    }
    </style>