This article mainly introduces the use of CSS3 to create a material-design style login interface example. It has certain reference value. You can learn more if you need it.
On a whim, I wanted to learn the design style of material design, so I tried to complete the production of a login page.
This is the overall effect.
Responsive design
In this page, use the following 3 points to complete the responsive design1. Maximum width. A maximum width of max-width is set to ensure compatibility with large screens.2. Margin: 20px auto; to keep it centered at all times3. Components use pixelsThere are many more points about responsive design.
Overall page layout
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="styles/style.css">
</head>
<body>
<p class="container">
<p class="logo">
<p class="logo-block-top">
</p>
<p class="logo-block-bottom">
</p>
</p>
<h4 class="login-header">用戶登錄</h4>
<p class="content">
<p class="form-group">
<input type="text" required class="form-control">
<label class="form-label">用戶名</label>
</p>
<p class="form-group">
<input type="text" required class="form-control">
<label class="form-label">密 碼</label>
</p>
<p class="option">
<p class="option-left"><a href="">忘記密碼</a></p>
<p class="option-right">
<span class="md-checkbox" checked="checked"></span>
<label class="form-label">記住密碼</label>
</p>
</p>
</p>
<button class="login-button">
<span class="icon-login"></span>
</button>
</p>
</body>
<script src="./app.js type=" text/javascript "></script>
</html>##CSS Startto body Add style
html {
font-family: "Microsoft YaHei", ?????“, "Segoe UI", "Lucida Grande", Helvetica, Arial, sans-serif, FreeSans, Arimo;
background-color: #FF4081;
color: #777;
}Heart
.container{
position: relative;
max-width: 360px;
margin: 0 auto;
margin-top: 30px;
padding: 45px 20px;
border-radius: 4px;
box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
background-color: #fff;
box-sizing: border-box;
}Note that the internal margins are adjusted here using Padding instead of using margin for child elements, because if you want to use margin, for the BFC effect, you need to add overflow: hidden. This will affect the overflow of the tail button.
Head logo.container>.logo {
height: 150px;
width: 150px;
position: relative;
background-color: #EFEFEF;
border-radius: 75px;
margin: 0 auto;
}Set border-radius to normal width and height, which will make it a circle
The following requires a darker semicircle
How to draw a semicircle?
.container>.logo::after {
content: ' ';
height: 150px;
width: 75px;
position: absolute;
background-color: #E1E1E1;
border-radius: 0 75px 75px 0;
left: 75px;
top: 0;
}Set the width to the height. Then set the upper left corner and lower left corner rounded corners to 0, and the right corner to 75px
Make a lock, divided into two parts, lock-top and lock-bottom
.container>.logo>.logo-block-top {
box-sizing: border-box;
height: 45px;
width: 54px;
border: 10px solid #F57C00;
border-bottom: 0;
position: absolute;
border-radius: 27px 27px 0 0;
left: 48px;
z-index: 1001;
top: 20px;
}Similarly set the rounded corners
.container>.logo>.logo-block-bottom {
position: absolute;
height: 60px;
width: 80px;
box-sizing: border-box;
background-color: #FFA000;
z-index: 1001;
top: 65px;
left: 35px;
border-radius: 7px;
}
Set the key heart , this is also divided into two parts, the upper round hole and the lower ellipse
can just be set on the before and after pseudo-elements of lock-bottom
.container>.logo>.logo-block-bottom::before {
content: " ";
position: absolute;
height: 12px;
width: 12px;
background-color: #EFEFEF;
border-radius: 5px;
top: 22px;
left: 34px;
box-sizing: border-box;
}
.container>.logo>.logo-block-bottom::after {
content: " ";
position: absolute;
height: 12px;
width: 6px;
background-color: #EFEFEF;
border-radius: 2px;
top: 30px;
left: 37px;
box-sizing: border-box;
}
The logo is complete here
The following is the 'User Login' title.
Note, it is best to use margin here instead of padding, do not destroy the original h4 tag.
.container>.login-header {
text-align: center;
font-size: 23px;
color: #FF4081;
font-weight: 400;
margin: 15px 0 18px 0;
}Add a container for the content
.container>.content {
width: 90%;
margin: 0 auto;
}Add a form-group, including label and input tags, set the relative layout
.container>.content>.form-group {
position: relative;
}The following is the core part, set the style for the input (this will generate a bug, will be introduced at the end)
.container>.content>.form-group>.form-control {
z-index: 3;
position: relative;
height: 58px;
width: 100%;
border: 0px;
border-bottom: 1px solid #777;
padding-top: 22px;
color: #FF4081;
font-size: 12px;
background: none;
box-sizing: border-box;
outline: none;
display: inline-block;
-webkit-transition: 0.3s;
transition: 0.3s;
}labe label, use absolute positioning, and place it above the Input.
.container>.content>.form-group>.form-label {
z-index: 1;
position: absolute;
bottom: 10px;
left: 0;
font-size: 15px;
-webkit-transition: 0.3s;
transition: 0.3s;
}Set a certain distance between the two form groups, otherwise the lower part will block the box-shadow set above
.container>.content>.form-group>:first-child {
margin-bottom: 5px;
}Add Dynamic effect
.container>.content>.form-group>.form-control:focus,
.container>.content>.form-group>.form-control:valid {
box-shadow: 0 1px #FF4081;
border-color: #FF4081;
}
.container>.content>.form-group>.form-control:focus+.form-label,
.container>.content>.form-group>.form-control:valid+.form-label {
font-size: 12px;
-ms-transform: translateY(-20px);
-webkit-transform: translateY(-20px);
transform: translateY(-25px);
}Now comes the bottom option, which is also divided into two parts, option-left and option-right
.container>.content>.option {
width: 100%;
height: 14px;
margin-top: 24px;
font-size: 16px;
}
.container>.content>.option>.option-left {
width: 50%;
float: left;
}
.container>.content>.option>.option-left>a,
.container>.content>.option>.option-left>a:hover {
color: #FF4081;
text-decoration: none;
} In option-right, please note that this checkbox is not a native Input, but is rotated using p, because the native checkbox cannot change the style.
.container>.content>.option>.option-right {
width: 50%;
float: right;
text-align: right;
position: relative;
}
.container>.content>.option>.option-right>.md-checkbox {
height: 18px;
width: 18px;
display: inline-block;
box-sizing: border-box;
position: absolute;
background-color: #FF4081;
cursor: pointer;
position: absolute;
top: 3px;
right: 68px;
}
.container>.content>.option>.option-right>.md-checkbox[checked]:after {
content: " ";
border-left: 2px solid #fff;
border-bottom: 2px solid #fff;
height: 8px;
width: 15px;
box-sizing: border-box;
position: absolute;
transform: rotate(-45deg);
top: 3px;
left: 2px;
}The rotation in css3 is used here to imitate a selection effect
Note: Although p cannot be directly selected, you can still add a checkd attribute to it. This attribute It is a special css event effect that can be controlled through js.
Finally, the login button.
Here, absolute positioning must also be used, and the reference points are bottom and right
.container>.login-button {
position: absolute;
height: 60px;
width: 60px;
border: 0px;
outline: 0px;
background-color: #FF4081;
border-radius: 30px;
right: -30px;
bottom: 91px;
box-shadow: 2px 0 0 rgba(0, 0, 0, 0.3) inset;
}通過 box-shadow: 2px 0 0 rgba(0, 0, 0, 0.3) inset; 這句話可以知道一個內(nèi)嵌效果.
中間的按鈕在不適用字體圖標(biāo)的情況下也必須要用p 旋轉(zhuǎn)來模仿了
.container>.login-button >.icon-login {
box-sizing: border-box;
position: relative;
width: 18px;
height: 3px;
background-color: #fff;
transition: 0.3s;
display: block;
margin: auto;
}
.container>.login-button >.icon-login::after {
content: ' ';
box-sizing: border-box;
position: absolute;
left: 8px;
height: 12px;
width: 12px;
border-top: 3px solid #fff;
border-right: 3px solid #fff;
transform: rotate(45deg);
top: -4px;
}最后是鼠標(biāo)hover上的放大和陰影效果
.container>.login-button:hover {
box-shadow: 0 0 0 rgba(0, 0, 0, 0.3) inset, 0 3px 6px rgba(0, 0, 0, 0.16), 0 5px 11px rgba(0, 0, 0, 0.23)
}
.container>.login-button:hover>.icon-login {
-ms-transform: scale(1.2);
=webkit-transform: scale(1.2);
transform: scale(1.2);
}至此,所有的css已經(jīng)結(jié)束了,查看效果
transition bug修復(fù)
當(dāng)我刷新頁面或者點(diǎn)擊忘記密碼的時候,input框就會抖動一下，這個問題只會出現(xiàn)在chrome 瀏覽器上，firefox 或者edge都不會重現(xiàn)，所以我才這應(yīng)該是兼容性的問題。 在不斷嘗試中，我發(fā)現(xiàn)，只有取消 transition屬性，就不會產(chǎn)生抖動。
這個問題困擾了我3天，真實(shí)百思不得其姐。
在某度中查詢半天，未果 。
后來終于在 StackOverFlow 中，搜索chrome input transition 時，終于一個回到讓我貌似頓開。
this bug has been reported， adding an script tag somewhere can advoid it.
之后，我在頁面尾部添加一個下面節(jié)點(diǎn)，終于順利解決。
<script src="./app.js type=" text/javascript "></script>
在閱讀過一些文章之后，總結(jié)為
當(dāng)chrome 的input 默認(rèn)屬性向自定義過度時，因?yàn)榇嬖趖ransition，所以會產(chǎn)生抖動。?而基本上所有的頁面都有script標(biāo)簽，所以這個bug 幾乎很難被重現(xiàn)。而我遇到，算是運(yùn)氣好吧。。
至此，這個頁面全部內(nèi)容已經(jīng)完成。
material-design 很贊，angular-material 是使用 AngularJS 封裝了 material-design 的UI 庫，很漂亮。不同于 bootstrap的完全扁平化風(fēng)格，它采用的是盒子堆砌效果，動畫效果也比較贊。
以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持PHP中文網(wǎng)。
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