HTML5分步骤注册表单 HTML5表单经典

本文作者html5tricks,转载请注明出处

表单在网页应用中十分重要,今天我要向大家分享一款基于HMLT5的分步骤注册表单,表单外观比较华丽,点击下一步按钮即可跳转到下一步填写注册信息。改HTML5表单使用了很多CSS3属性,从而在表单切换时拥有弹性的动画,是一款很不错的HTML5表单。

html5-step-reg-form

接下来我们要来一起看看实现的过程是怎样的。代码有点复杂,主要由HTML代码、CSS3代码以及Javascript代码组成。

HTML代码:

<form id="msform">
	<!-- progressbar -->
	<ul id="progressbar">
		<li>Account Setup</li>
		<li>Social Profiles</li>
		<li>Personal Details</li>
	</ul>
	<!-- fieldsets -->
	<fieldset>
		<h2>Create your account</h2>
		<h3>This is step 1</h3>
		<input type="text" name="email" placeholder="Email" />
		<input type="password" name="pass" placeholder="Password" />
		<input type="password" name="cpass" placeholder="Confirm Password" />
		<input type="button" name="next" value="Next" />
	</fieldset>
	<fieldset>
		<h2>Social Profiles</h2>
		<h3>Your presence on the social network</h3>
		<input type="text" name="twitter" placeholder="Twitter" />
		<input type="text" name="facebook" placeholder="Facebook" />
		<input type="text" name="gplus" placeholder="Google Plus" />
		<input type="button" name="previous" value="Previous" />
		<input type="button" name="next" value="Next" />
	</fieldset>
	<fieldset>
		<h2>Personal Details</h2>
		<h3>We will never sell it</h3>
		<input type="text" name="fname" placeholder="First Name" />
		<input type="text" name="lname" placeholder="Last Name" />
		<input type="text" name="phone" placeholder="Phone" />
		<textarea name="address" placeholder="Address"></textarea>
		<input type="button" name="previous" value="Previous" />
		<input type="submit" name="submit" value="Submit" />
	</fieldset>
</form>

HTML代码看起来很多,但是很简单,主要是描述了一form表单。

CSS代码:

/*form styles*/
#msform {
	width: 400px;
	margin: 50px auto;
	text-align: center;
	position: relative;
}
#msform fieldset {
	background: white;
	border: 0 none;
	border-radius: 3px;
	box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.4);
	padding: 20px 30px;

	box-sizing: border-box;
	width: 80%;
	margin: 0 10%;

	/*stacking fieldsets above each other*/
	position: absolute;
}
/*Hide all except first fieldset*/
#msform fieldset:not(:first-of-type) {
	display: none;
}
/*inputs*/
#msform input, #msform textarea {
	padding: 15px;
	border: 1px solid #ccc;
	border-radius: 3px;
	margin-bottom: 10px;
	width: 100%;
	box-sizing: border-box;
	font-family: montserrat;
	color: #2C3E50;
	font-size: 13px;
}
/*buttons*/
#msform .action-button {
	width: 100px;
	background: #27AE60;
	font-weight: bold;
	color: white;
	border: 0 none;
	border-radius: 1px;
	cursor: pointer;
	padding: 10px 5px;
	margin: 10px 5px;
}
#msform .action-button:hover, #msform .action-button:focus {
	box-shadow: 0 0 0 2px white, 0 0 0 3px #27AE60;
}
/*headings*/
.fs-title {
	font-size: 15px;
	text-transform: uppercase;
	color: #2C3E50;
	margin-bottom: 10px;
}
.fs-subtitle {
	font-weight: normal;
	font-size: 13px;
	color: #666;
	margin-bottom: 20px;
}
/*progressbar*/
#progressbar {
	margin-bottom: 30px;
	overflow: hidden;
	/*CSS counters to number the steps*/
	counter-reset: step;
}
#progressbar li {
	list-style-type: none;
	color: white;
	text-transform: uppercase;
	font-size: 9px;
	width: 33.33%;
	float: left;
	position: relative;
}
#progressbar li:before {
	content: counter(step);
	counter-increment: step;
	width: 20px;
	line-height: 20px;
	display: block;
	font-size: 10px;
	color: #333;
	background: white;
	border-radius: 3px;
	margin: 0 auto 5px auto;
}
/*progressbar connectors*/
#progressbar li:after {
	content: '';
	width: 100%;
	height: 2px;
	background: white;
	position: absolute;
	left: -50%;
	top: 9px;
	z-index: -1; /*put it behind the numbers*/
}
#progressbar li:first-child:after {
	/*connector not needed before the first step*/
	content: none; 
}
/*marking active/completed steps green*/
/*The number of the step and the connector before it = green*/
#progressbar li.active:before,  #progressbar li.active:after{
	background: #27AE60;
	color: white;
}

这里我们只是将渲染表单的CSS代码贴了出来,这让我们的表单看起来非常清新自然。另外要说明的一点是,这里我们利用了CSS3的:before属性。

最后是Javascript代码,可以实现注册表单的步骤跳转。

Javascript代码:

var current_fs, next_fs, previous_fs; //fieldsets
var left, opacity, scale; //fieldset properties which we will animate
var animating; //flag to prevent quick multi-click glitches

$(".next").click(function(){
	if(animating) return false;
	animating = true;

	current_fs = $(this).parent();
	next_fs = $(this).parent().next();

	//activate next step on progressbar using the index of next_fs
	$("#progressbar li").eq($("fieldset").index(next_fs)).addClass("active");

	//show the next fieldset
	next_fs.show(); 
	//hide the current fieldset with style
	current_fs.animate({opacity: 0}, {
		step: function(now, mx) {
			//as the opacity of current_fs reduces to 0 - stored in "now"
			//1. scale current_fs down to 80%
			scale = 1 - (1 - now) * 0.2;
			//2. bring next_fs from the right(50%)
			left = (now * 50)+"%";
			//3. increase opacity of next_fs to 1 as it moves in
			opacity = 1 - now;
			current_fs.css({'transform': 'scale('+scale+')'});
			next_fs.css({'left': left, 'opacity': opacity});
		}, 
		duration: 800, 
		complete: function(){
			current_fs.hide();
			animating = false;
		}, 
		//this comes from the custom easing plugin
		easing: 'easeInOutBack'
	});
});

$(".previous").click(function(){
	if(animating) return false;
	animating = true;

	current_fs = $(this).parent();
	previous_fs = $(this).parent().prev();

	//de-activate current step on progressbar
	$("#progressbar li").eq($("fieldset").index(current_fs)).removeClass("active");

	//show the previous fieldset
	previous_fs.show(); 
	//hide the current fieldset with style
	current_fs.animate({opacity: 0}, {
		step: function(now, mx) {
			//as the opacity of current_fs reduces to 0 - stored in "now"
			//1. scale previous_fs from 80% to 100%
			scale = 0.8 + (1 - now) * 0.2;
			//2. take current_fs to the right(50%) - from 0%
			left = ((1-now) * 50)+"%";
			//3. increase opacity of previous_fs to 1 as it moves in
			opacity = 1 - now;
			current_fs.css({'left': left});
			previous_fs.css({'transform': 'scale('+scale+')', 'opacity': opacity});
		}, 
		duration: 800, 
		complete: function(){
			current_fs.hide();
			animating = false;
		}, 
		//this comes from the custom easing plugin
		easing: 'easeInOutBack'
	});
});

$(".submit").click(function(){
	return false;
})

这里我们可以看到,利用jQuery代码变得非常简洁。主要是3个事件:next、previous、submit,同时在next和previous时利用jQuery实现淡入淡出的动画效果,是不是很迷人?

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