用html写一个搜索页面

html 复制代码

<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>搜索框设计</title>
  <link rel="stylesheet" href="./style.css">
</head>
<body>
<div class="search-overlay"></div>
<div class="scroll-cont">
  <div class="content">
    <div class="search">
      <div class="search_bg"></div>
      <div class="search_box">
        <input type="text" class="search_input" placeholder="Search"/>
        <div class="search_line"></div>
        <div class="search_close"></div>
      </div>
    </div>
  </div>
</div>
<!-- partial -->
  <script  src="./script.js"></script>
</body>
</html>

js 复制代码

(function() {
    var $searchOverlay = document.querySelector(".search-overlay");
    var $search = document.querySelector(".search");
    var $clone, offsetX, offsetY;
  
    $search.addEventListener("click", function() {
      var $original = this;
      $clone = this.cloneNode(true);
  
      $searchOverlay.classList.add("s--active");
  
      $clone.classList.add("s--cloned", "s--hidden");
      $searchOverlay.appendChild($clone);
  
      var triggerLayout = $searchOverlay.offsetTop;
  
      var originalRect = $original.getBoundingClientRect();
      var cloneRect = $clone.getBoundingClientRect();
  
      offsetX = originalRect.left - cloneRect.left;
      offsetY = originalRect.top - cloneRect.top;
  
      $clone.style.transform = "translate("+ offsetX +"px, "+ offsetY +"px)";
      $original.classList.add("s--hidden");
      $clone.classList.remove("s--hidden");
  
      var triggerLayout = $searchOverlay.offsetTop;
  
      $clone.classList.add("s--moving");
  
      $clone.setAttribute("style", "");
  
      $clone.addEventListener("transitionend", openAfterMove);
    });
  
    function openAfterMove() {
      $clone.classList.add("s--active");
      $clone.querySelector("input").focus();
  
      addCloseHandler($clone);
      $clone.removeEventListener("transitionend", openAfterMove);
    };
    
    function addCloseHandler($parent) {
      var $closeBtn = $parent.querySelector(".search_close");
      $closeBtn.addEventListener("click", closeHandler);
    };
  
    /* 关闭处理函数 */
    function closeHandler(e) {
      $clone.classList.remove("s--active");
      e.stopPropagation();
      
      var $cloneBg = $clone.querySelector(".search_bg");
  
      $cloneBg.addEventListener("transitionend", moveAfterClose);
    };
    
    function moveAfterClose(e) {
      e.stopPropagation(); // 防止双重转换,以及防止在父级$clone上触发
      
      $clone.classList.add("s--moving");
      $clone.style.transform = "translate("+ offsetX +"px, "+ offsetY +"px)";
      $clone.addEventListener("transitionend", terminateSearch);
    };
    
    function terminateSearch(e) {
      $search.classList.remove("s--hidden");
      $clone.remove();
      $searchOverlay.classList.remove("s--active");
    };
  }());

复制代码

*, *:before, *:after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html, body {
    height: 100%;
    background-image: url(https://source.unsplash.com/6ZZh8kOyW-4);
    background-size: cover;
  }
  
  .search-overlay {
    z-index: -1000;
    overflow: hidden;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
  }
  
  .search-overlay.s--active {
    z-index: 9999;
  }
  
  .scroll-cont {
    position: relative;
    height: 100%;
    overflow-y: auto;
  }
  
  .content {
    padding: 50px;
  }
  
  .search {
    position: relative;
    margin: 0 auto 50px;
    width: 100px;
    height: 100px;
    perspective: 1000px;
  }
  
  .search:not(.s--active) {
    cursor: pointer;
  }
  
  .search.s--hidden {
    opacity: 0;
  }
  
  .search.s--cloned {
    position: absolute;
    left: 50%;
    top: 50%;
    right: auto;
    bottom: auto;
    margin-left: -58px;
    margin-top: -58px;
    margin-right: 0;
    margin-bottom: 0;
  }
  
  .search.s--moving {
    transition: transform 0.4s cubic-bezier(0.56, -0.49, 0.58, 0.9);
  }
  
  .search_bg {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(236, 83, 83, 0.8);
    transition: all 0.6s ease;
    transform: translate3d(-50%, -50%, 0);
    will-change: transform;
  }
  
  .search.s--active .search_bg {
    transform: translate3d(-50%, -50%, 0) scale(48);
  }
  
  .search_box {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 40px;
    height: 40px;
    border: 4px solid #fff;
    border-radius: 25px;
    transform: translate(-50%, -50%);
    transition: all 0.45s ease;
  }
  
  .search.s--active .search_box {
    width: 510px;
    height: 100px;
    border-radius: 50px;
  }
  
  .search_input {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    outline: none;
    pointer-events: none;
    opacity: 0;
    color: #fff;
    font-size: 40px;
    transition: opacity 0s;
  }
  
  .search_input::-moz-placeholder {
    color: rgba(255, 255, 255, 0.4);
  }
  
  .search_input:-ms-input-placeholder {
    color: rgba(255, 255, 255, 0.4);
  }
  
  .search_input::placeholder {
    color: rgba(255, 255, 255, 0.4);
  }
  
  .search.s--active .search_input {
    padding: 23px 90px 23px 40px;
    pointer-events: auto;
    opacity: 1;
    transition: opacity 0.18s 0.48s;
  }
  
  .search_line {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 20px;
    height: 4px;
    border-radius: 2px;
    background: #fff;
    transform-origin: 0 50%;
    transform: translate(12px, 12px) rotate(45deg);
    transition: all 0.48s;
  }
  
  .search_line:before {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: inherit;
    height: inherit;
    background: inherit;
    border-radius: inherit;
    transform: rotate(90deg);
    opacity: 0;
    transition: opacity 0.3s;
  }
  
  .search.s--active .search_line:before {
    opacity: 1;
    transition: opacity 0.3s 0.42s;
  }
  
  .search.s--active .search_line {
    width: 36px;
    height: 6px;
    transform: translate(180px, 11px) rotate(-45deg);
  }
  
  .search_close {
    position: absolute;
    right: 0;
    top: 0;
    width: 30px;
    height: 30px;
    pointer-events: none;
  }
  
  .search.s--active .search_close {
    right: 44px;
    top: 33px;
    pointer-events: auto;
    cursor: pointer;
  }