• sass登陆页面实例


    sass登陆页面实例

    一、总结

    一句话总结:

    sass使用非常方便:使用就是将sass转化为css引入,并且动态监听让sass转化为css,可以很方便的所见即所得

    1、sass安装?

    npm就可以按照了:npm install -g sass

    2、sass文件如何使用?

    Sass使用.scss作为文件后缀名,不能直接在<link>标签中使用,需要编译为.css文件。
    将sass文件转化为css文件:sass input.scss output.css

    3、sass的作用是什么?

    Sass可以让我们使用一些CSS中没有实现的功能,例如变量、嵌套、组合、继承等等;

    4、实时监控并且将sass文件转化为css文件?

    sass--watch input.scss:output.css
    sass --watch scss:dist/css  将sass文件夹中的sass文件转化为dist/css文件夹中的css文件

    5、弹性布局居中?

    display: flex;
    justify-content: center;
    align-items: center;

    6、弹性布局左右分布实例?

    display: flex;
    justify-content: space-between;

    7、after做body的颜色块?

    after里面可以定义内容,样式等,很方便
      &::after {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: -1;
        background: $main-color;
        opacity: 0.8;
      }

    8、css动画实例?

    有hover属性后,可以加个transition: all 0.4s;
    &:last-child {
      color: #fff;
      background: $second-color;
      transition: all 0.4s;
    
      &:hover {
        background: $main-color;
      }
    }

    9、vh使用实例?

    min-height: 100vh;
    body {
      position: relative;
      min-height: 100vh;
      background: url(../img/bg.jpg) no-repeat center center/cover;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    二、sass登陆页面实例

    1、效果图

     

    2、代码

    1)html代码:index.html

     1 <!DOCTYPE html>
     2 <html lang="en">
     3   <head>
     4     <meta charset="UTF-8" />
     5     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     6     <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     7     <link rel="stylesheet" href="css/main.css" />
     8     <title>Document</title>
     9   </head>
    10   <body>
    11     <div class="card">
    12       <h3>登录后更精彩</h3>
    13       <form>
    14         <input type="email" id="email" name="email" placeholder="邮箱" />
    15         <input type="password" id="password" name="password" placeholder="密码" />
    16         <input type="submit" value="登录" />
    17       </form>
    18       <ul>
    19         <li><a href="#">注册</a></li>
    20         <li><a href="#">忘记密码</a></li>
    21       </ul>
    22     </div>
    23   </body>
    24 </html>

    2)sass代码:main.scss

     1 $main-color: #2ecc71;
     2 $second-color: #27ae60;
     3 
     4 * {
     5   margin: 0;
     6   padding: 0;
     7   box-sizing: border-box;
     8 }
     9 
    10 body {
    11   position: relative;
    12   min-height: 100vh;
    13   background: url(../img/bg.jpg) no-repeat center center/cover;
    14   display: flex;
    15   justify-content: center;
    16   align-items: center;
    17 
    18   &::after {
    19     content: "";
    20     position: absolute;
    21     top: 0;
    22     left: 0;
    23     width: 100%;
    24     height: 100%;
    25     z-index: -1;
    26     background: $main-color;
    27     opacity: 0.8;
    28   }
    29 
    30   .card {
    31     width: 400px;
    32     padding: 2rem 3rem;
    33     background: #fff;
    34 
    35     h3 {
    36       font-weight: 400;
    37       color: $second-color;
    38       margin-bottom: 1rem;
    39     }
    40 
    41     form input {
    42       display: block;
    43       width: 100%;
    44       border: 1px solid #ddd;
    45       padding: 0.5rem;
    46       margin-bottom: 1rem;
    47 
    48       &:last-child {
    49         color: #fff;
    50         background: $second-color;
    51         transition: all 0.4s;
    52 
    53         &:hover {
    54           background: $main-color;
    55         }
    56       }
    57 
    58       &:focus {
    59         outline: 1px solid $main-color;
    60       }
    61     }
    62 
    63     ul {
    64       list-style: none;
    65       display: flex;
    66       justify-content: space-between;
    67       font-size: 0.9rem;
    68 
    69       li a {
    70         color: #333;
    71         text-decoration: none;
    72         border-bottom: 1px solid transparent;
    73         transition: all 0.4s;
    74 
    75         &:hover {
    76           color: $main-color;
    77           border-bottom: 1px solid $main-color;
    78         }
    79       }
    80     }
    81   }
    82 }

    3)css代码:main.css

     1 * {
     2   margin: 0;
     3   padding: 0;
     4   box-sizing: border-box;
     5 }
     6 
     7 body {
     8   position: relative;
     9   min-height: 100vh;
    10   background: url(../img/bg.jpg) no-repeat center center/cover;
    11   display: flex;
    12   justify-content: center;
    13   align-items: center;
    14 }
    15 body::after {
    16   content: "";
    17   position: absolute;
    18   top: 0;
    19   left: 0;
    20   width: 100%;
    21   height: 100%;
    22   z-index: -1;
    23   background: #2ecc71;
    24   opacity: 0.8;
    25 }
    26 body .card {
    27   width: 400px;
    28   padding: 2rem 3rem;
    29   background: #fff;
    30 }
    31 body .card h3 {
    32   font-weight: 400;
    33   color: #27ae60;
    34   margin-bottom: 1rem;
    35 }
    36 body .card form input {
    37   display: block;
    38   width: 100%;
    39   border: 1px solid #ddd;
    40   padding: 0.5rem;
    41   margin-bottom: 1rem;
    42 }
    43 body .card form input:last-child {
    44   color: #fff;
    45   background: #27ae60;
    46   transition: all 0.4s;
    47 }
    48 body .card form input:last-child:hover {
    49   background: #2ecc71;
    50 }
    51 body .card form input:focus {
    52   outline: 1px solid #2ecc71;
    53 }
    54 body .card ul {
    55   list-style: none;
    56   display: flex;
    57   justify-content: space-between;
    58   font-size: 0.9rem;
    59 }
    60 body .card ul li a {
    61   color: #333;
    62   text-decoration: none;
    63   border-bottom: 1px solid transparent;
    64   transition: all 0.4s;
    65 }
    66 body .card ul li a:hover {
    67   color: #2ecc71;
    68   border-bottom: 1px solid #2ecc71;
    69 }
    70 
    71 /*# sourceMappingURL=main.css.map */
     
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  • 原文地址:https://www.cnblogs.com/Renyi-Fan/p/11989881.html
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