1. 内容显示,无论高度是多少,底部信息都将显示在最下方

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
html {
height: 100%;
}
body {
height: 100%;
margin: 0px;
overflow: hidden;
}
.page {
display: flex;
flex-direction: column;
height: 100%;
overflow: auto;
}
.content {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
text-align: center;
flex: 1;
background-color: #2b85e4;
}
.content-sub {
width: 100%;
height: 2000px;
background-color: #baffa4;
}
.foot {
text-align: center;
padding: 10px;
background-color: #7ed321;
}
</style>
</head>
<body>
<div class="page">
<div class="content">
内容显示,无论高度是多少,底部信息都将显示在最下方
<div class="content-sub">
填充块
</div>
</div>
<div class="foot">底部信息</div>
</div>
</body>
</html>
2. 自定义 自动完成组件

<!doctype html>
<html>
<style>
body {
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
}
.auto_hidden {
width: 204px;
border-top: 1px solid #333;
border-bottom: 1px solid #333;
border-left: 1px solid #333;
border-right: 1px solid #333;
position: absolute;
display: none;
}
.auto_show {
width: 204px;
border-top: 1px solid #333;
border-bottom: 1px solid #333;
border-left: 1px solid #333;
border-right: 1px solid #333;
position: absolute;
z-index: 9999;
display: block;
}
.auto_onmouseover {
color: #ffffff;
background-color: highlight;
width: 100%;
}
.auto_onmouseout {
color: #000000;
width: 100%;
background-color: #ffffff;
}
</style>
<script language="javascript">
<!--
var $ = function(id) {
return "string" == typeof id ? document.getElementById(id) : id;
}
var Bind = function(object, fun) {
return function() {
return fun.apply(object, arguments);
}
}
function AutoComplete(obj, autoObj, arr) {
this.obj = $(obj);
this.autoObj = $(autoObj);
this.value_arr = arr;
this.index = -1;
this.search_value = "";
}
AutoComplete.prototype = {
init: function() {
this.autoObj.style.left = this.obj.offsetLeft + "px";
this.autoObj.style.top = this.obj.offsetTop + this.obj.offsetHeight + "px";
this.autoObj.style.width = this.obj.offsetWidth - 2 + "px";
},
deleteDIV: function() {
while (this.autoObj.hasChildNodes()) {
this.autoObj.removeChild(this.autoObj.firstChild);
}
this.autoObj.className = "auto_hidden";
},
setValue: function(_this) {
return function() {
_this.obj.value = this.seq;
_this.autoObj.className = "auto_hidden";
}
},
autoOnmouseover: function(_this, _div_index) {
return function() {
_this.index = _div_index;
var length = _this.autoObj.children.length;
for (var j = 0; j < length; j++) {
if (j != _this.index) {
_this.autoObj.childNodes[j].className = 'auto_onmouseout';
} else {
_this.autoObj.childNodes[j].className = 'auto_onmouseover';
}
}
}
},
changeClassname: function(length) {
for (var i = 0; i < length; i++) {
if (i != this.index) {
this.autoObj.childNodes[i].className = 'auto_onmouseout';
} else {
this.autoObj.childNodes[i].className = 'auto_onmouseover';
this.obj.value = this.autoObj.childNodes[i].seq;
}
}
},
pressKey: function(event) {
var length = this.autoObj.children.length;
if (event.keyCode == 40) {
++this.index;
if (this.index > length) {
this.index = 0;
} else if (this.index == length) {
this.obj.value = this.search_value;
}
this.changeClassname(length);
}
else if (event.keyCode == 38) {
this.index--;
if (this.index < -1) {
this.index = length - 1;
} else if (this.index == -1) {
this.obj.value = this.search_value;
}
this.changeClassname(length);
}
else if (event.keyCode == 13) {
this.autoObj.className = "auto_hidden";
this.index = -1;
} else {
this.index = -1;
}
},
start: function(event) {
if (event.keyCode != 13 && event.keyCode != 38 && event.keyCode != 40) {
this.init();
this.deleteDIV();
this.search_value = this.obj.value;
var valueArr = this.value_arr;
valueArr.sort();
if (this.obj.value.replace(/(^\s*)|(\s*$)/g, '') == "") {
return;
}
try {
var reg = new RegExp("(" + this.obj.value + ")", "i");
} catch (e) {
return;
}
var div_index = 0;
for (var i = 0; i < valueArr.length; i++) {
if (reg.test(valueArr[i])) {
var div = document.createElement("div");
div.className = "auto_onmouseout";
div.seq = valueArr[i];
div.onclick = this.setValue(this);
div.onmouseover = this.autoOnmouseover(this, div_index);
div.innerHTML = valueArr[i].replace(reg, "<strong>$1</strong>");
this.autoObj.appendChild(div);
this.autoObj.className = "auto_show";
div_index++;
}
}
}
this.pressKey(event);
window.onresize = Bind(this, function() {
this.init();
});
}
}
-->
</SCRIPT>
<body>
<h1 align="center">自动完成函数(Autocomplete Function)</h1>
<div align="center"><input type="text" style="width:300px;height:20px;font-size:14pt;" id="o"
onkeyup="autoComplete.start(event)"></div>
<div class="auto_hidden" id="auto">
</div>
<script>
var autoComplete = new AutoComplete('o', 'auto', ['b0', 'b12', 'b22', 'b3', 'b4', 'b5', 'b6', 'b7', 'b8', 'b2',
'abd', 'ab', 'acd', 'accd', 'b1', 'cd', 'ccd', 'cbcv', 'cxf'
]);
</SCRIPT>
</body>
</html>
3. 按钮控制元素展开或者隐藏

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="author" content="http://www.pipipi.net/" />
<title></title>
<style type="text/css">
body {
text-align: center
}
.box {
width: 200px;
height: 100px;
background-color: green;
margin: 0px auto;
}
</style>
<script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#hide").click(function() {
$(".box").slideUp();
});
$("#show").click(function() {
$(".box").slideDown();
});
})
</script>
</head>
<body>
<div class="box"></div>
<input type="button" id="hide" value="点击隐藏" />
<input type="button" id="show" value="点击展开" />
</body>
</html>
4. 回到顶部

<!DOCTYPE html>
<html>
<head>
<style>
.box {
position: fixed;
right: 10px;
bottom: 10px;
height: 30px;
width: 50px;
text-align: center;
padding-top: 20px;
background-color: lightblue;
border-radius: 20%;
overflow: hidden;
}
.box:hover:before {
top: 50%
}
.box:hover .box-in {
visibility: hidden;
}
.box:before {
position: absolute;
top: -50%;
left: 50%;
transform: translate(-50%, -50%);
content: '回到顶部';
width: 40px;
color: peru;
font-weight: bold;
}
.box-in {
visibility: visible;
display: inline-block;
height: 20px;
width: 20px;
border: 3px solid black;
border-color: white transparent transparent white;
transform: rotate(45deg);
}
.top {
position: fixed;
right: 10px;
top: 10px;
height: 30px;
width: 50px;
text-align: center;
padding-top: 20px;
background-color: lightblue;
border-radius: 20%;
overflow: hidden;
}
.top:hover:before {
top: 50%
}
.top:hover .top-in {
visibility: hidden;
}
.top:before {
position: absolute;
top: -50%;
left: 50%;
transform: translate(-50%, -50%);
content: '查看标签';
width: 40px;
color: peru;
font-weight: bold;
}
.top-in {
visibility: visible;
display: inline-block;
height: 20px;
width: 20px;
border: 3px solid black;
border-color: transparent white white transparent ;
transform: rotate(45deg);
}
</style>
</head>
<body style="height:2000px;">
<div id="box" class="box">
<div class="box-in"></div>
</div>
</body>
<script>
var timer = null;
box.onclick = function() {
cancelAnimationFrame(timer);
timer = requestAnimationFrame(function fn() {
var oTop = document.body.scrollTop || document.documentElement.scrollTop;
if (oTop > 0) {
document.body.scrollTop = document.documentElement.scrollTop = oTop - 50;
timer = requestAnimationFrame(fn);
} else {
cancelAnimationFrame(timer);
}
});
}
</script>
</html>
5. 可伸缩input
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>可伸缩搜索框demo</title>
</head>
<body>
<style type="text/css">
.search-input {
background: #ededed url(http://webdesignerwall.com/demo/expandable-search-form/images/search-icon.png) no-repeat 9px;
padding: 8px 5px 8px 32px;
width: 0%;
border-radius: 18px;
outline: none;
overflow: hidden;
border-radius: 18px;
border: 1px solid #ddd;
-moz-box-shadow: inset 1px 1px 10px rgba(0, 0, 0, 0.1);
-webkit-box-shadow: inset 1px 1px 10px rgba(0, 0, 0, 0.1);
box-shadow: inset 1px 1px 10px rgba(0, 0, 0, 0.1);
-webkit-transition: all .3s;
-moz-transition: all .3s;
-o-transition: all .3s;
}
.search-input:hover,
.search-input:focus {
border-color: #fff;
color: #444;
width: 10%;
}
</style>
<div class="search-mb">
<input class="search-input" type="text"/>
</div>
</body>
</html>