html 我导入了一个导航栏到我的投资组合类网页，它的出现，但没有响应点击,

u59ebvdq  于 2023-01-28  发布在  其他
关注(0)|答案(1)|浏览(114)

我在codepen上看到this导航条，我想它会是我网页的一个很好的补充，取代了我以前的导航条，但是它对我点击切换颜色或"按钮"没有React，而且我对js也不太了解。
下面是我的代码：

`<body>
  <div class="newNavBar">
    <menu class="menu">
      <button class="menu__item active" style="--bgColorItem: #ff8c00;" >
        <svg class="icon" viewBox="0 0 24 24">
          <path d="M3.8,6.6h16.4"/>
          <path d="M20.2,12.1H3.8"/>
          <path d="M3.8,17.5h16.4"/>
        </svg>
      </button>
      
      <button class="menu__item" style="--bgColorItem: #f54888;">
        <svg class="icon" viewBox="0 0 24 24">
          <path  d="M6.7,4.8h10.7c0.3,0,0.6,0.2,0.7,0.5l2.8,7.3c0,0.1,0,0.2,0,0.3v5.6c0,0.4-0.4,0.8 0.8,0.8H3.8 C3.4,19.3,3,19,3,18.5v-5.6c0-0.1,0-0.2,0.1-0.3L6,5.3C6.1,5,6.4,4.8,6.7,4.8z"/>
          <path  d="M3.4,12.9H8l1.6,2.8h4.9l1.5-2.8h4.6"/>
        </svg>
      </button>
      
      <button class="menu__item" style="--bgColorItem: #4343f5;" >
        <svg class="icon" viewBox="0 0 24 24">
          <path  d="M3.4,11.9l8.8,4.4l8.4-4.4"/>
          <path  d="M3.4,16.2l8.8,4.5l8.4-4.5"/>
          <path  d="M3.7,7.8l8.6-4.5l8,4.5l-8,4.3L3.7,7.8z"/>
        </svg>
      </button>

      <button class="menu__item" style="--bgColorItem: #e0b115;" > 
        <svg class="icon" viewBox="0 0 24 24" >
          <path  d="M5.1,3.9h13.9c0.6,0,1.2,0.5,1.2,1.2v13.9c0,0.6-0.5,1.2-1.2,1.2H5.1c-0.6,0-1.2-0.5-1.2-1.2V5.1 C3.9,4.4,4.4,3.9,5.1,3.9z"/>
          <path  d="M4.2,9.3h15.6"/>
          <path  d="M9.1,9.5v10.3"/>
        </svg>
        </button>

        <button class="menu__item" style="--bgColorItem:#65ddb7;">
          <svg class="icon" viewBox="0 0 24 24" >
            <path  d="M5.1,3.9h13.9c0.6,0,1.2,0.5,1.2,1.2v13.9c0,0.6-0.5,1.2-1.2,1.2H5.1c-0.6,0-1.2-0.5-1.2-1.2V5.1 C3.9,4.4,4.4,3.9,5.1,3.9z"/>
            <path  d="M5.5,20l9.9-9.9l4.7,4.7"/>
            <path  d="M10.4,8.8c0,0.9-0.7,1.6-1.6,1.6c-0.9,0-1.6-0.7-1.6-1.6C7.3,8,8,7.3,8.9,7.3C9.7,7.3,10.4,8,10.4,8.8z"/>
          </svg>
        </button>

        <div class="menu__border"></div>
        <div class="svg-container">
        <svg viewBox="0 0 202.9 45.5" >
          <clipPath id="menu" clipPathUnits="objectBoundingBox" transform="scale(0.0049285362247413 0.021978021978022)">
            <path d="M 197 0 c -5.7 -0.1 -14.1 0.4 -23.3 4 c -5.7 2.3 -9.9 5 -18.1 10.5 c -10.7 7.1 -11.8 9.2 -20.6 14.3 c -5 2.9 -9.2 5.2 -15.2 7 c -7.1 2.1 -13.3 2.3 -17.6 2.1 c -4.2 0.2 -10.5 -0.1 -17.6 -2.1 c -6.1 -1.8 -10.2 -4.1 -15.2 -7 c -8.8 -5 -9.9 -7.1 -20.6 -14.3 c -8.3 -5.5 -12.4 -8.2 -18.1 -10.5 c -9.2 -3.6 -17.6 -4.2 -23.3 -4 H -6.7"/>
          </clipPath>
        </svg>
      </div>
    </menu>
  </div>

  <div> <!-- Welcome Section -->
    <section id="welcome-section" class="welcome-section">
      <h1>This is my Web Page</h1>
      <p>and i love marketing</p>  
    </section>
  </div>`
`@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@100;500;800&display=swap');

/* Variables */

:root {
  --main-white: #f0f0f0;
  --main-red: #be3144;
  --main-black: #171516;
  --main-gray: #303841;
}

/* Body */

body {
  font-family: "Poppins", sans-serif;
  font-size: 1.8rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--main-white);
}

h1,
h2 {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  text-align: center;
}

h1 {
  font-size: 6rem;
}

h2 {
  font-size: 4rem;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: var(--main-white);
}

img {
  display: block;
  width: 100%;
}

/* Doc */

* {
  font-family: "Poppins", sans-serif;
  margin: 0;
}

/* Welcome Section */

.welcome-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
  background-color: var(--main-white);
}

.welcome-section h1 {
  color: var(--main-black);
}

.welcome-section p {
  font-size: 4rem;
  font-weight: 200;
  font-style: italic;
  color: var(--main-red);
}

/* NavBox */

.newNavBar {
  box-sizing: border-box;
  /* display: flex; */
  justify-content: flex-end;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  margin: 0;
  --bgColorMenu:
  var(--main-black);
  --duration: 0.7s;
  background-color: var(--main-black);
  -webkit-tap-highlight-color: transparent;
  transition: background-color var(--duration);
}

.menu {
  margin: 0;
  display: flex;
  /* Works well with 100% width  */
  font-size: 1.5em;
  padding: 0 2.85em;
  position: relative;
  align-items: center;
  justify-content: center;
  background-color: var(--main-black);
}

.menu__item {
  all: unset;
  flex-grow: 1;
  z-index: 100;
  display: flex;
  cursor: pointer;
  position: relative;
  border-radius: 50%;
  align-items: center;
  will-change: transform;
  justify-content: center;
  padding: 0.55em 0 0.85em;
  transition: transform var(--timeOut, var(--duration));
}

.menu__item::before {
  content: "";
  z-index: -1;
  width: 4.2em;
  height: 4.2em;
  border-radius: 50%;
  position: absolute;
  transform: scale(0);
  transition: background-color var(--duration), transform var(--duration);
}

.menu__item.active {
  transform: translate3d(0, 0.8em, 0);
}

.menu__item.active::before {
  transform: scale(1);
  background-color: var(--bgColorItem);
}

.icon {
  width: 2.6em;
  height: 2.6em;
  /*Personalize the icon color*/
  stroke: white;
  /*Personalize the icon filling */
  fill: transparent;
  stroke-width: 1pt;
  stroke-miterlimit: 10;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 400;
}

.menu__item.active .icon {
  animation: strok 1.5s reverse;
}

@keyframes strok {
  100% {
    stroke-dashoffset: 400;
  }
}

.menu__border {
  left: 0;
  top: 99%;
  width: 10.9em;
  height: 2.4em;
  position: absolute;
  clip-path: url(#menu);
  will-change: transform;
  background-color: var(--bgColorMenu);
  transition: transform var(--timeOut, var(--duration));
}

.svg-container {
  width: 0;
  height: 0;
}

@media screen and (max-width: 50em) {
  .menu {
    font-size: 0.8em;
  }
}`
`const body = document.body;
const bgColorsBody = ["#ffb457", "#ff96bd", "#9999fb", "#ffe797", "#cffff1"];
const menu = body.querySelector(".menu");
const menuItems = menu.querySelectorAll(".menu__item");
const menuBorder = menu.querySelector(".menu__border");
let activeItem = menu.querySelector(".active");

function clickItem(item, index) {
  menu.style.removeProperty("--timeOut");

  if (activeItem == item) return;

  if (activeItem) {
    activeItem.classList.remove("active");
  }

  item.classList.add("active");
  body.style.backgroundColor = bgColorsBody[index];
  activeItem = item;
  offsetMenuBorder(activeItem, menuBorder);
}

function offsetMenuBorder(element, menuBorder) {
  const offsetActiveItem = element.getBoundingClientRect();
  const left =
    Math.floor(
      offsetActiveItem.left -
        menu.offsetLeft -
        (menuBorder.offsetWidth - offsetActiveItem.width) / 2
    ) + "px";
  menuBorder.style.transform = `translate3d(${left}, 0 , 0)`;
}

offsetMenuBorder(activeItem, menuBorder);

menuItems.forEach((item, index) => {
  item.addEventListener("click", () => clickItem(item, index));
});

window.addEventListener("resize", () => {
  offsetMenuBorder(activeItem, menuBorder);
  menu.style.setProperty("--timeOut", "none");
});`

我尝试将标记添加到页面中，但似乎对解决问题没有帮助，控制台显示错误为"Uncatched TypeError：无法读取后面的null属性（读取'querySelector'）。js：3：19 "

Html

1条答案

按热度按时间
7dl7o3gd

7dl7o3gd1#

刚刚解决了这个问题，原来js代码是在html和css部分之前加载的，所以一开始的值是null，通过在我的标签中添加这个来解决。

<head>
    <script defer src="index.js"></script>
</head>
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