HTML CSS Login

index.html

<style>
    * {margin: 0; padding: 0;}
    body {
        font-family: calibri;
        background: #F3F5F7;
    }

    #topbar-link {
        background: #28abe3;
        height: 3px;
    }

    .login h2 {
        text-align: center;
    }

    .login-box {
        background: #FFF;
        width: 20%;
        padding: 35px;
        margin: 20px auto;
        box-shadow: 0 1px 2px rgba(30,37,44,.08);
    }

    form label {
        display: block;
        margin: 10px 0;
        font-size: 16px;
        font-weight: 600;
        box-sizing: border-box;
        color: #49525d;
    }

    form input {
        width: 100%;
        padding-left: 10px;
        padding-right: 10px;
        outline: none;
        margin-bottom: 0;
        line-height: 48px;
        height: 48px;
        border: 2px solid #e2e8ed;
        border-radius: 4px;
        margin-bottom: 10px;
    }

    form button {
        width: 100%;
        padding: 14px 20px;
        background: #1ca1e3;
        border-radius: 5px;
        border: none;
        color: #FFF;
        font-weight: bold;
        cursor: pointer; 
        margin-top: 20px;
    }

    h1 {
        margin-top: 100px;
        text-align: center;
        font-size: 40px;
        font-weight: 100;
    }

    @media only screen and (max-width: 700px) {
      .login-box {
            width: 60%;
      }
    }

</style>

<div id="topbar-link"></div>

<h1>Sign in</h1>

<div class="login-box">
    <form action="login" method="post">
    
        <label>Username</label>
        <input type="text" name="email"> 

        <label>Password</label>
        <input type="password" name="password">
        <button type="submit">Login</button>
    </form>

</div>