在导航栏中垂直对齐徽标不起作用

时间：2020-11-03 15:04:26

标签： javascript html jquery css

我正在尝试将“徽标”与导航栏垂直对齐。 我希望它以正常状态和折叠状态为中心。

我尝试了几种可能的解决方案，但到目前为止似乎没有任何效果。 我尝试添加不同的头寸类型，并尝试使用顶部和底部50％的保证金。 这可能是一种非常简单的方法。

https://jsfiddle.net/qb0dj3yp/90/

谢谢！

//header Effekt beim scrollen

$(function() {
  var shrinkHeader = 100;
  $(window).scroll(function() {
    var scroll = getCurrentScroll();
    if (scroll >= shrinkHeader) {
      $('#navbar').addClass('shrink');
    } else {
      $('#navbar').removeClass('shrink');
    }
  });

  function getCurrentScroll() {
    return window.pageYOffset || document.documentElement.scrollTop;
  }
});
// JavaScript Document

$(document).ready(function() {

  var navTop = $('#navbar').offset().top;
  var navHeight = $('#navbar').height();
  var windowH = $(window).height();

  $('.section').height(windowH);

  $(document).scroll(function() {
    var st = $(this).scrollTop();

    //for the nav bar:
    if (st > navTop) {
      $('#navbar').addClass('fix');
      $('.section:eq(0)').css({
        'margin-top': navHeight
      }); //fix  scrolling issue due to the fix nav bar
    } else {
      $('#navbar').removeClass('fix');
      $('.section:eq(0)').css({
        'margin-top': '0'
      });
    }

    $('.section').each(function(index, element) {
      if (st + navHeight > $(this).offset().top && st + navHeight <= $(this).offset().top + $(this).height()) {
        $(this).addClass('active');

        var id = $(this).attr('id');
        $('a[href="#' + id + '"]').parent('li').addClass('active');
        // or $('#nav li:eq('+index+')').addClass('active');
      } else {
        $(this).removeClass('active');

        var id = $(this).attr('id');
        $('a[href="#' + id + '"]').parent('li').removeClass('active');
        //or $('#nav li:eq('+index+')').removeClass('active');
      }

    });

  });

});



//

@charset "utf-8";

/* CSS Document */

* {
  font-family: 'Roboto', sans-serif;

}

#container {
  width: 1280px;
  height: 100%;
  margin-left: auto;
  margin-right: auto;
}

body {
  background-color: grey;
  margin: 128px 0 0 0;
}

/* Navigation */
#navlinks {
  margin: 0;
}

ul {
  color: black;
  list-style: none;
  float: right;
  margin-right: 20px;
  padding-top: 30px;
}

ul li {
  display: inline-table;
  margin-left: 5px;
  padding: 5px;
  border-bottom: 1.5px solid;
  border-bottom-color: white;
}

ul li a {
  color: black;
  text-decoration: none;
  padding: 10px;
}

#logo {
  height: 128px;
  vertical-align: middle;
  margin-top: 50%;
  margin-bottom: 50%;
}

/* Smart Navbar / weiß, wo man auf der Seite ist von https://stackoverflow.com/questions/19697696/change-underline-of-active-nav-by-section */
#navbar.fix {
  position: fixed;
  top: 0;
}

#navbar li.active {
  border-bottom: 1.5px solid;
  border-bottom-color: #f6bd60;
}

/* Smart Navbar Ende */

/* fixed Navigation von https://codepen.io/malZiiirA/pen/cbfED?css-preprocessor=none */
#navbar {
  border-bottom-style: solid;
  border-bottom-width: 1.25px;
  box-shadow: 0px 2.5px 5px rgba(0, 0, 0, 0.2);
  background-color: white;
  height: 128px;
  transition: 0.32s;
  position: fixed;
  top: 0;
  width: 1280px;
}

#navbar.shrink {
  height: 80px;
  line-height: 18px;
}

#navbar li {
  font-size: 1.2rem;
  font-weight: normal;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

#navbar.shrink li {
  font-size: 1.2rem;
  margin-top: -30px;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

#navbar img {
  height: 128px;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

#navbar.shrink img {
  height: 80px;
  margin-top: -30px;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

/* fixed nav Ende */

/*
#spacer {
  height: 128px;
  border-bottom: 4px solid;
}


  margin-top: 0 !important;
*/
#Home {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -1;
  background-color: darkred;
  position: relative;
  top: -80px;
}

#UberUns {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -2;
  background-color: lightblue;
  position: relative;
  top: -80px;
}

#Aktionen {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -3;
  background-color: blue;
  position: relative;
  top: -80px;
}

#Terminvereinbarung {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -4;
  background-color: red;
  position: relative;
  top: -80px;
}

#Infos {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -5;
  background-color: yellow;
  position: relative;
  top: -80px;
}

/* Hover Effekt bei Navigation von https://github.com/IanLunn/Hover/blob/master/css/hover.css */
.hvr-sweep-to-top {
  display: inline-block;
  vertical-align: middle;
  -webkit-transform: perspective(1px) translateZ(0);
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  position: relative;
  -webkit-transition-property: color;
  transition-property: color;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
}

.hvr-sweep-to-top:before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #f6bd60;
  -webkit-transform: scaleY(0);
  transform: scaleY(0);
  -webkit-transform-origin: 50% 100%;
  transform-origin: 50% 100%;
  -webkit-transition-property: transform;
  transition-property: transform;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-transition-timing-function: ease-out;
  transition-timing-function: ease-out;
}

.hvr-sweep-to-top:hover,
.hvr-sweep-to-top:focus,
.hvr-sweep-to-top:active {
  color: white;
}

.hvr-sweep-to-top:hover:before,
.hvr-sweep-to-top:focus:before,
.hvr-sweep-to-top:active:before {
  -webkit-transform: scaleY(1);
  transform: scaleY(1);
}

/* Hover Effekt Ende */


/* Loader */
.loader {
  display: inline-block;
  width: 30px;
  height: 30px;
  position: relative;
  border: 4px solid #Fff;
  animation: loader 2s infinite ease;
}

.loader-inner {
  vertical-align: top;
  display: inline-block;
  width: 100%;
  background-color: #fff;
  animation: loader-inner 2s infinite ease-in;
}

@keyframes loader {
  0% {
    transform: rotate(0deg);
  }

  25% {
    transform: rotate(180deg);
  }

  50% {
    transform: rotate(180deg);
  }

  75% {
    transform: rotate(360deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes loader-inner {
  0% {
    height: 0%;
  }

  25% {
    height: 0%;
  }

  50% {
    height: 100%;
  }

  75% {
    height: 100%;
  }

  100% {
    height: 0%;
  }
}

.loader-wrapper {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: #242f3f;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* loader Ende */


<!DOCTYPE html>
<html>

  <head>
    <title>OptikTack</title>
    <link href="style.css" rel="stylesheet" type="text/css">
    <link href="https://fonts.googleapis.com/css2?family=Roboto&display=swap" rel="stylesheet">
  </head>

  <body>
    <div id="container">
      <div class="body">
      <!-- Navigation -->
        <nav id="navbar">
          <script class="cssdeck" src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
          <script src="javascript/navbar fixed.js"></script>
          <a href="#Home" id="logo"><img src="https://www.w3schools.com/images/lamp.jpg"></a>
          <ul>
            <li class="hvr-sweep-to-top active"><a href="#Home">Home</a></li>
            <li class="hvr-sweep-to-top"><a href="#UberUns">Wir über uns</a></li>
            <li class="hvr-sweep-to-top"><a href="#Aktionen">Aktionen</a></li>
            <li class="hvr-sweep-to-top"><a href="#Terminvereinbarung">Terminvereinbarung</a></li>
            <li class="hvr-sweep-to-top"><a href="#Infos">Infos</a></li>
          </ul>
        </nav>
        <!-- body -->
        <div id="spacer"></div>
        <!-- home section -->
        <section id="Home" class="section">
          <div>

          </div>
        </section>
        <!-- UberUns section -->
        <section id="UberUns" class="section">
          <div>
            <p>section 2</p>
          </div>
        </section>
        <!-- Aktionen section -->
        <div id="reference"></div>
        <section id="Aktionen" class="section">
          <div>
            <p>section 3</p>
          </div>
        </section>
        <!-- Terminvereinbarung section -->
        <section id="Terminvereinbarung" class="section">
          <div>
            <p>section 4</p>
          </div>
        </section>
        <!-- Infos section -->
        <section id="Infos" class="section">
          <div>
            <p>section 5</p>
          </div>
        </section>



      </div>
    </div>
    <div class="loader-wrapper">
      <span class="loader"><span class="loader-inner"></span></span>
    </div>

    <script>
      $(window).on("load", function() {
        $(".loader-wrapper").fadeOut("slow");
      });

    </script>
    <script>
      $('a').click(function() {
        $('html, body').animate({
          scrollTop: $($(this).attr('href')).offset().top
        }, 500);
        return false;
      });

    </script>
  </body>

</html>

3 个答案:

答案 0 :(得分：0)

margin: auto是您的朋友在这里。将此应用于子div。还要检查弹性盒的用法

答案 1 :(得分：0)

我将您的JSFiddle调整为使用display: flex和align-items: center https://jsfiddle.net/xv29r1sm/

您应该给https://css-tricks.com/snippets/css/a-guide-to-flexbox/阅读：）

答案 2 :(得分：0)

也许这就是您想要的，

在css部分中，搜索＃navbar.shrink img 。

从此处删除此行： 顶部距：-30px；

或只是这样评论： / * margin-top：-30px; * /

现在它应该垂直居中。那是因为margin-top属性会将图像拖到更远的位置，这在您的情况下是不需要的。

    //header Effekt beim scrollen

$(function() {
  var shrinkHeader = 100;
  $(window).scroll(function() {
    var scroll = getCurrentScroll();
    if (scroll >= shrinkHeader) {
      $('#navbar').addClass('shrink');
    } else {
      $('#navbar').removeClass('shrink');
    }
  });

  function getCurrentScroll() {
    return window.pageYOffset || document.documentElement.scrollTop;
  }
});
// JavaScript Document

$(document).ready(function() {

  var navTop = $('#navbar').offset().top;
  var navHeight = $('#navbar').height();
  var windowH = $(window).height();

  $('.section').height(windowH);

  $(document).scroll(function() {
    var st = $(this).scrollTop();

    //for the nav bar:
    if (st > navTop) {
      $('#navbar').addClass('fix');
      $('.section:eq(0)').css({
        'margin-top': navHeight
      }); //fix  scrolling issue due to the fix nav bar
    } else {
      $('#navbar').removeClass('fix');
      $('.section:eq(0)').css({
        'margin-top': '0'
      });
    }

    $('.section').each(function(index, element) {
      if (st + navHeight > $(this).offset().top && st + navHeight <= $(this).offset().top + $(this).height()) {
        $(this).addClass('active');

        var id = $(this).attr('id');
        $('a[href="#' + id + '"]').parent('li').addClass('active');
        // or $('#nav li:eq('+index+')').addClass('active');
      } else {
        $(this).removeClass('active');

        var id = $(this).attr('id');
        $('a[href="#' + id + '"]').parent('li').removeClass('active');
        //or $('#nav li:eq('+index+')').removeClass('active');
      }

    });

  });

});



//
    @charset "utf-8";

/* CSS Document */

* {
  font-family: 'Roboto', sans-serif;

}

#container {
  width: 1280px;
  height: 100%;
  margin-left: auto;
  margin-right: auto;
}

body {
  background-color: grey;
  margin: 128px 0 0 0;
}

/* Navigation */
#navlinks {
  margin: 0;
}

ul {
  color: black;
  list-style: none;
  float: right;
  margin-right: 20px;
  padding-top: 30px;
}

ul li {
  display: inline-table;
  margin-left: 5px;
  padding: 5px;
  border-bottom: 1.5px solid;
  border-bottom-color: white;
}

ul li a {
  color: black;
  text-decoration: none;
  padding: 10px;
}

#logo {
  height: 128px;
  vertical-align: middle;
}

/* Smart Navbar / weiß, wo man auf der Seite ist von https://stackoverflow.com/questions/19697696/change-underline-of-active-nav-by-section */
#navbar.fix {
  position: fixed;
  top: 0;
}

#navbar li.active {
  border-bottom: 1.5px solid;
  border-bottom-color: #f6bd60;
}

/* Smart Navbar Ende */

/* fixed Navigation von https://codepen.io/malZiiirA/pen/cbfED?css-preprocessor=none */
#navbar {
  border-bottom-style: solid;
  border-bottom-width: 1.25px;
  box-shadow: 0px 2.5px 5px rgba(0, 0, 0, 0.2);
  background-color: white;
  height: 128px;
  transition: 0.32s;
  position: fixed;
  top: 0;
  width: 1280px;
}

#navbar.shrink {
  height: 80px;
  line-height: 18px;
}

#navbar li {
  font-size: 1.2rem;
  font-weight: normal;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

#navbar.shrink li {
  font-size: 1.2rem;
  margin-top: -30px;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

#navbar img {
  height: 128px;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

#navbar.shrink img {
  height: 80px;
  /*margin-top: -30px;*/
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

/* fixed nav Ende */

/*
#spacer {
  height: 128px;
  border-bottom: 4px solid;
}


  margin-top: 0 !important;
*/
#Home {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -1;
  background-color: darkred;
  position: relative;
  top: -80px;
}

#UberUns {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -2;
  background-color: lightblue;
  position: relative;
  top: -80px;
}

#Aktionen {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -3;
  background-color: blue;
  position: relative;
  top: -80px;
}

#Terminvereinbarung {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -4;
  background-color: red;
  position: relative;
  top: -80px;
}

#Infos {
  height: 100%;
  display: block;
  margin-top: -80px;
  padding-top: 80px;
  z-index: -5;
  background-color: yellow;
  position: relative;
  top: -80px;
}

/* Hover Effekt bei Navigation von https://github.com/IanLunn/Hover/blob/master/css/hover.css */
.hvr-sweep-to-top {
  display: inline-block;
  vertical-align: middle;
  -webkit-transform: perspective(1px) translateZ(0);
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  position: relative;
  -webkit-transition-property: color;
  transition-property: color;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
}

.hvr-sweep-to-top:before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #f6bd60;
  -webkit-transform: scaleY(0);
  transform: scaleY(0);
  -webkit-transform-origin: 50% 100%;
  transform-origin: 50% 100%;
  -webkit-transition-property: transform;
  transition-property: transform;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-transition-timing-function: ease-out;
  transition-timing-function: ease-out;
}

.hvr-sweep-to-top:hover,
.hvr-sweep-to-top:focus,
.hvr-sweep-to-top:active {
  color: white;
}

.hvr-sweep-to-top:hover:before,
.hvr-sweep-to-top:focus:before,
.hvr-sweep-to-top:active:before {
  -webkit-transform: scaleY(1);
  transform: scaleY(1);
}

/* Hover Effekt Ende */


/* Loader */
.loader {
  display: inline-block;
  width: 30px;
  height: 30px;
  position: relative;
  border: 4px solid #Fff;
  animation: loader 2s infinite ease;
}

.loader-inner {
  vertical-align: top;
  display: inline-block;
  width: 100%;
  background-color: #fff;
  animation: loader-inner 2s infinite ease-in;
}

@keyframes loader {
  0% {
    transform: rotate(0deg);
  }

  25% {
    transform: rotate(180deg);
  }

  50% {
    transform: rotate(180deg);
  }

  75% {
    transform: rotate(360deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes loader-inner {
  0% {
    height: 0%;
  }

  25% {
    height: 0%;
  }

  50% {
    height: 100%;
  }

  75% {
    height: 100%;
  }

  100% {
    height: 0%;
  }
}

.loader-wrapper {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: #242f3f;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* loader Ende */
<!DOCTYPE html>
<html>

  <head>
    <title>OptikTack</title>
    <link href="style.css" rel="stylesheet" type="text/css">
    <link href="https://fonts.googleapis.com/css2?family=Roboto&display=swap" rel="stylesheet">
  </head>

  <body>
    <div id="container">
      <div class="body">
      <!-- Navigation -->
        <nav id="navbar">
          <script class="cssdeck" src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
          <script src="javascript/navbar fixed.js"></script>
          <a href="#Home" id="logo"><img src="https://www.w3schools.com/images/lamp.jpg"></a>
          <ul>
            <li class="hvr-sweep-to-top active"><a href="#Home">Home</a></li>
            <li class="hvr-sweep-to-top"><a href="#UberUns">Wir über uns</a></li>
            <li class="hvr-sweep-to-top"><a href="#Aktionen">Aktionen</a></li>
            <li class="hvr-sweep-to-top"><a href="#Terminvereinbarung">Terminvereinbarung</a></li>
            <li class="hvr-sweep-to-top"><a href="#Infos">Infos</a></li>
          </ul>
        </nav>
        <!-- body -->
        <div id="spacer"></div>
        <!-- home section -->
        <section id="Home" class="section">
          <div>

          </div>
        </section>
        <!-- UberUns section -->
        <section id="UberUns" class="section">
          <div>
            <p>section 2</p>
          </div>
        </section>
        <!-- Aktionen section -->
        <div id="reference"></div>
        <section id="Aktionen" class="section">
          <div>
            <p>section 3</p>
          </div>
        </section>
        <!-- Terminvereinbarung section -->
        <section id="Terminvereinbarung" class="section">
          <div>
            <p>section 4</p>
          </div>
        </section>
        <!-- Infos section -->
        <section id="Infos" class="section">
          <div>
            <p>section 5</p>
          </div>
        </section>



      </div>
    </div>
    <div class="loader-wrapper">
      <span class="loader"><span class="loader-inner"></span></span>
    </div>

    <script>
      $(window).on("load", function() {
        $(".loader-wrapper").fadeOut("slow");
      });

    </script>
    <script>
      $('a').click(function() {
        $('html, body').animate({
          scrollTop: $($(this).attr('href')).offset().top
        }, 500);
        return false;
      });

    </script>
  </body>

</html>

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