Question

我想编写一个响应式导航栏，因此，当用户单击汉堡菜单时，导航链接应在网站内部从右向左移动。在Javascript中，我切换了“ nav ul”的“ nav-active”类。 “ nav-active”类的属性为“ transform：translateX（0％）;”，该属性应将元素定位回网站，但事实并非如此。

HTML：

<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <link rel="stylesheet" href="stylesheets/style.css">
  </head>
  <body>

      <!------------------------------------------------------------------------Top Navigation-->
      <nav class="navigation">
        <div class="logo">
          <img src="images/logodressler350.png" alt="Logo Image" width="250">
        </div>
        <ul class="nav-links">
          <li><a href="#">Startseite</a></li>
          <li><a href="#">lernraumdressler</a></li>
          <li><a href="#">Nachhilfe</a></li>
          <li><a href="#">Anfahrt</a></li>
          <li><a href="#">Kontakt</a></li>
        </ul>
        <div class="burger">
          <div class="line-1"></div>
          <div class="line-2"></div>
          <div class="line-3"></div>
        </div>
      </nav>
      <div class="green-line"></div>
      <script type="text/javascript" src="javascripts/navbar.js"></script>
  </body>
</html>

SCSS：

 .navigation{
  display: flex;
  min-height: 8vh;
  justify-content: space-around;
  align-items: center;
  background-color: white;
  ul {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 70%;
  }
  ul li{
    list-style: none;
    text-align: center;
  }
  ul li a{
    text-decoration: none;
    color: #333;
    letter-spacing: 2px;
    font-weight: bold;
    font-size: 18px;
  }
}
.dropdowncontent{
  display: none;
}
.burger{
  display: none;
  cursor: pointer;
  div{
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px;
    transition: all 0.3s ease;
  }
}
.green-line{
  background-color: lightgreen;
  width: 100%;
  height: 2px;
}
//------------------------------------------------------------------------------MEDIA
@media screen and (max-width: 968px){
  .navigation{
    ul{
      width: 80%;
    }
  }
}
@media screen and (max-width: 868px){
  body{
    //overflow-x: hidden;
  }
  .burger{
    display: block;
  }
  .navigation ul{
    position: absolute;
    right: 0;
    height: 92vh;
    top: 8vh;
    background-color: gray;
    display: flex;
    flex-direction: column; // x und y werden getauscht
    align-items: center;
    width: 50%;
    transform: translateX(100%);
    transition: transform 0.5s ease-in;
    li{
      opacity: 0;
    }
  }
}
//------------------------------------------------------------------------------Keyframes
/*wenn man clickt*/
.nav-active{
  transform: translateX(0%);
}
@keyframes navLinkFade{
  from{
    opacity: 0;
    transform: translateX(50px);
  }
  to{
    opacity: 1;
    transform: translateX(0px);
  }
}

.toggle .line-1{
  transform: rotate(-45deg) translate(-5px, 6px);
}
.toggle .line-2{
  opacity: 0;
}
.toggle .line-3{
  transform: rotate(45deg) translate(-5px, -6px);
}

JS：

const navSlide = () => {
  const burger = document.querySelector(".burger");
  var nav = document.querySelector(".navigation ul");
  const navLinks = document.querySelectorAll(".navigation ul li");

  burger.addEventListener("click", () => {
    // Toggle Nav
    nav.classList.toggle("nav-active");
    // Animate Links
    navLinks.forEach((link, index) => {
      if (link.style.animation){
        link.style.animation = "";
      } else{
        link.style.animation = `navLinkFade 0.5s ease forwards ${index / 7}s`;
      }
    });
    // Burger Animation
    burger.classList.toggle("toggle");
  });
}
navSlide();

这里是演示 https://jsfiddle.net/chinamarc/6r78a0e2/4/

Answer 1

jsoncomment

Specificity是应用于给定CSS声明的权重，它由匹配选择器中每种选择器类型的数量决定。当多个声明具有相同的特异性时，将在CSS中找到的最后一个声明应用于该元素。特异性仅在多个声明针对同一元素时适用。根据CSS规则，直接定位的元素将始终优先于元素从其祖先继承的规则。

//-----------------------------------------------Keyframes
/*wenn man clickt*/
.navigation .nav-active{
   transform: translateX(0%);
}

在JavaScript中更改CSS转换不会触发Javascript中的转换

1 个答案: