Design a simple HTML login interface using CSS style

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title></title>
        <!--Introduce font icon library-->
        <link rel="stylesheet" type="text/css" href="font-awesome-4.7.0/css/font-awesome.min.css">
        <link rel="stylesheet" href="css/reset.css">
        <link rel="stylesheet" href="css/login.css">
    </head>
    <body>

        <div class="wrap">
            <h1>E-Commerce Mall Backend Management System</h1>
            <form action="">
                <div class="input-group">
                    //The icon-like thing on the left side of the input box is a font. //You can download the file font-awesome-4.7.0 from the Internet and paste it directly into the project directory for use <i class="icon-user fa fa-user"></i>
                    <input type="text" name="" class="form-control" placeholder="Please enter your username">
                </div>
                <div class="input-group">
                    <i class="icon-user fa fa-lock"></i>
                    <input type="password" name="" class="form-control" placeholder="Please enter your password">
                </div>
                <div class="input-group btn-group">
                    <button>Login</button>
                </div>
            </form>
            <p>&copy;xx Group&nbsp;All rights reserved</p>
        </div>

    </body>
</html>

reset.css part (reset part)

*{
 margin:0;
 padding:0;
}
a{
 font-size: 12px;
 text-decoration: 0;
 color:#222;
}
a,
input,
button{
 outline: none;
}
ul,ol,li{
 list-style: none;
}
h1,h2,h3,h4,h5,h6{
 font-weight: 100;
}
img{
 display: block;
 border: 0;
}

About resetting the style file:

Because different browsers render HTML tags differently, even if the developer does not write a line of CSS code for the HTML page, the opened page will always have a style, but the default styles of different browsers are slightly different, which creates trouble for developers to a certain extent. Therefore, before starting to write CSS code, the style sheet is usually reset first to unify the styles of HTML elements in all browsers. Front-end engineers unify the styles through custom style files, thereby improving the compatibility of the front-end interface.

y{
 background: rgba(0,0,0,0.8);
}
body{
    //Set the background image for the web page background-image: url(../img/xx.jpg);
}
.wrap{
    //Center the main body of the interface in the browser position: absolute; //Absolute positioning left: 50%;
 top: 50%;
 margin: -175px 0 0 -250px;
 padding: 20px;
 width: 500px;
 height: 350px;
 background: #333333;
 box-shadow:0 0 10px rgba(255,255,255,0.5);
 box-sizing: border-box; //padding and border are included in the defined width and height}
h1{
 height: 50px;
 font-size: 1.6em;
 text-align: center;
 border-bottom: 1px solid rgba(255,255,255,0.5);
}
.input-group{
 margin: 20px auto;
 height: 40px;
 width: 300px;
 border: 1px solid rgba(0,0,0,0.2);
}
i{
 float: left; //left float width: 40px;
 height: 40px;
 text-align: center;
 line-height: 40px !important;
 background: rgb(22,160,93);
 color: #fff;
 font-size: 22px !important;
 
}
.form-control{
 float: left;
 padding: 0 10px;
 height: 40px;
 border: 0;
 width: 260px;
 font-size: 18px;
 box-sizing: border-box;
}
.btn-group{
 border: 0;
 margin-top: 40px;
}
button{
 display: block;
 width: 100%;
 height: 40px;
 font-size: 1.2em;
 letter-spacing: 10px;
 border: 1px solid rgb(22,160,93);
 color: rgb(22,160,93);
 background: #fff;
 cursor: pointer;
}
button:hover{
    //Set the dynamic effect color of mouse hover for button elements: #fff;
 background: rgb(22,160,93);
}
p{
 font-size: 12px;
 text-align: center;
 color: #888;
}

The effect of the design results on the browser:

This is the end of this article about how to use CSS styles to design a simple HTML login interface. For more relevant CSS HTML login interface content, please search 123WORDPRESS.COM’s previous articles or continue to browse the following related articles. I hope everyone will support 123WORDPRESS.COM in the future!

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