小白前端自制红警登陆界面（试水前端）

效果图

代码

一，html部分

	
		
		
		
		
	
	
		

			

				

					

						
				
							用户名
							
						
						

							
							密码
							
						
						

							登陆
						
					
				
				
			
			
			
			
		
	

二，css部分

*{
	margin: 0;
	padding: 0;
}

.bkg{
	position: relative;
	width: 100%;
	height: 975px;
	background-image:url(../img/bkg.jpg);
	background-repeat: no-repeat;
	background-size: cover;
}

.login{
	position: absolute;
	margin: 30px auto;
	width: 400px;
	height: 300px;
	background: rgb(192,192,192,0.3);
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	border-radius: 6%;
	transition: 0.8s;
}
.login:hover{
	width: 430px;
}
.person{
	position: absolute;
	top: 120px;
	left: -700px;
	transition: 1.2s ease-out;
}

.log{
	float: right;
}

.input_box{
	position: relative;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	margin: 20px auto;
	width: 300px;
	height: 200px;
	background: rgb(192,192,192,0.1);
	text-align: center;
	border-radius: 4%;
	font-size: 20px;
}

.input_box ol li{
	display: inline-block;
	margin-top: 20px;
	list-style: none;
	
}
.input_box ol li label{
	float: left;
	width: 80px;
	height: 30px;
	line-height: 1em;
}
.input_box ol li input{
	float: left;
	width: 180px;
	height: 30px;
	text-align: left;
	line-height: 100%;
	padding: 1px 9px;
}
.button{
	margin: 0;
	padding: 0;
	border: 2px solid rgb(192,192,192,0.7);
	width: 90px;
	height: 30px;
	background: rgb(192,192,192,0.5);
	font-family: serif;
	font-size: 20px;
	letter-spacing: 6px;
	transition: 0.5s;
}
.button:hover{
	transform: scale(1.1,1.1);
}
.bottom{
	position: absolute;
	width: 100%;
	height: 0px;
	background-image:url(../img/bottom1.png);
	background-repeat: no-repeat;
	background-size: cover;
	top: 925px;
	transition: 0.8s ease-out;
}

三，js部分

window.onload = function(){
	var login = document.getElementById("login1");
	var person = document.getElementById("person1");
	var bottom = document.getElementById("bottom1");
	login.onmouseover = function(){
		
			person.style.left = 0;
			bottom.style.height = "50px";
			
		
	}
	login.onmouseout = function(){
		
			person.style.left = "-700px";
			bottom.style.height = 0;
		
	}
	
}

注：如果要复制运行这个代码，需要注意一些图片资源的路径

图片素材

bkg.jpg
bottom1.png
log.png

person.png

本人ps技术有限，图可能扣的不大好，下面的是原图，有大佬可以自己扣
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