JSFiddle - React, Tailwind, and code Playground

HTML

<div class="block-login">

<form action="http://magento.local/customer/account/loginPost/" method="post">
    <div class="block-content">
        <div class="mini-login-input">
            <label for="mini-login">Email:</label><br /><input type="text" name="login[username]" id="mini-login" class="input-text" />
        </div>
        <div class="mini-login-input">
            <label for="mini-password">Password:</label><br /><input type="password" name="login[password]" id="mini-password" class="input-text" />
        </div>

        <div class="actions">
            <button type="submit" class="button"><span><span>Login</span></span></button>
        </div>
    </div>
</form>
</div>

CSS

.block-login {
float:right;
width:530px;
}

.block-login.block-content {
}

.mini-login-input {
float:left;
margin-right:20px;
height:100%
}

.mini-login-input.label {
}

.block-login.button {
}
div.actions{}
button{margin-top:0px; margin-left:-20px}