csssearch/search.html at master · dodoto/csssearch · GitHub

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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3搜索框展开收缩动画特效抄的</title>

<style>
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #252525;
}

.container {
  position: absolute;
  margin: auto;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  height: 100px;
}
.container .search {
  position: absolute;
  margin: auto;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 25px;
  height: 25px;
  background: white;
  border-radius: 50%;
  transition: all 1s;
  z-index: 4;
}
.container .search:hover {
  cursor: pointer;
}
/*放大镜*/
.container .search::before {
  content: "";
  position: absolute;
  margin: auto;
  top: 13px;
  right: 0;
  bottom: 0;
  left: 13px;
  width: 5px;
  height: 2px;
  background: gray;
  transform: rotate(45deg);
  transition: all .5s;
}
.container .search::after {
  content: "";
  position: absolute;
  margin: auto;
  top: -1px;
  right: 0;
  bottom: 0;
  left: -1px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid gray;
  transition: all .5s;
}
.container input {
  font-family: 'Inconsolata', monospace;
  position: absolute;
  margin: auto;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 30px;
  outline: none;
  border: none;
  background: white;
  color: gray;
  padding: 0 80px 0 20px;
  border-radius: 30px;
  transition: all 1s;
  opacity: 0;
  z-index: 5;
  font-weight: bolder;
  letter-spacing: 0.1em;
}
.container input:hover {
  cursor: pointer;
}
.container input:focus {
  width: 200px;
  opacity: 1;
  cursor: text;
}
.container input:focus ~ .search {
  right: -170px;
  background: gray;
  z-index: 6;
}
/*X按钮*/
.container input:focus ~ .search::before {
  top: 0;
  left: 0px;
  background: white;
  width: 25px;
}
.container input:focus ~ .search::after {
  top: 0;
  left: 0px;
  width: 25px;
  height: 2px;
  border: none;
  background: white;
  border-radius: 0%;
  transform: rotate(-45deg);
}
.container input::placeholder {
  color: gray;
  opacity: 0.5;
  font-weight: bolder;
}
</style>

</head>
<body>

<div class="container">
  <input type="text" placeholder="Search...">
  <div class="search"></div>
</div>
</body>
</html>