蓝色大气的登陆界面

这是一款使用 Tailwind CSS 制作的目前常见的登陆界面，采用左右两栏布局，左边是背景图和文字介绍，右边是表单，简单却显大气，看起来非常精致、舒服。登陆界面兼容多个尺寸的终端，包括 PC 端，Pad 端和手机端。
下面我们来看看如何制作。

1、HTML

<div class="relative min-h-screen flex">
    <div
        class="flex flex-col sm:flex-row items-center md:items-start sm:justify-center md:justify-start flex-auto min-w-0 bg-white">
        <div class="sm:w-1/2 xl:w-3/5 h-full hidden md:flex flex-auto items-center justify-center p-10 overflow-hidden bg-purple-900 text-white bg-no-repeat bg-cover relative"
            style=background-image:url(img.jpg)>
            <div class="absolute bg-gradient-to-b from-indigo-600 to-blue-500 opacity-75 inset-0 z-0"></div>
            <div class="w-full max-w-md z-10">
                <div class="sm:text-4xl xl:text-5xl font-bold leading-tight mb-6">欢迎光临</div>
                <div class="sm:text-sm xl:text-md text-gray-200 font-normal">
                    欢迎来到好玩俱乐部，在这里和志同道合的朋友一起分享有趣的故事，一起组织有趣的活动...</div>
            </div>
            <ul class=circles>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
            </ul>
        </div>
        <div
            class="md:flex md:items-center md:justify-center w-full sm:w-auto md:h-full w-2/5 xl:w-2/5 p-8 md:p-10 lg:p-14 sm:rounded-lg md:rounded-none bg-white">
            <div class="max-w-md w-full mx-auto space-y-8">
                <div class=text-center>
                    <h2 class="mt-6 text-3xl font-bold text-gray-900">欢迎回来</h2>
                    <p class="mt-2 text-sm text-gray-500">第三方登录</p>
                </div>
                <div class="flex flex-row justify-center items-center space-x-3"><a href=javascript:
                        class="w-11 h-11 items-center justify-center inline-flex rounded-2xl font-bold text-lg bg-blue-900 hover:shadow-lg cursor-pointer transition ease-in duration-300"><img
                            class="w-4 h-4"
                            src="data:image/svg+xml;base64,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"></a>
                    <a href=javascript:
                        class="w-11 h-11 items-center justify-center inline-flex rounded-2xl font-bold text-lg text-white bg-blue-400 hover:shadow-lg cursor-pointer transition ease-in duration-300"><img
                            class="w-4 h-4"
                            src="data:image/svg+xml;base64,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"></a>
                    <a href=javascript:
                        class="w-11 h-11 items-center justify-center inline-flex rounded-2xl font-bold text-lg text-white bg-blue-500 hover:shadow-lg cursor-pointer transition ease-in duration-300"><img
                            src="data:image/svg+xml;base64,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"
                            class="w-4 h-4"></a></div>
                <div class="flex items-center justify-center space-x-2"><span class="h-px w-16 bg-gray-200"></span>
                    <span class="text-gray-300 font-normal">使用电子邮箱登录</span> <span
                        class="h-px w-16 bg-gray-200"></span></div>
                <form class="mt-8 space-y-6" action=# method=POST><input type=hidden name=remember value="true">
                    <div class=relative><label
                            class="ml-3 text-sm font-bold text-gray-700 tracking-wide">电子邮箱</label><input
                            class="w-full text-base px-4 py-2 border-b border-gray-300 focus:outline-none rounded-2xl focus:border-indigo-500"
                            type="" placeholder="请输入电子邮箱"></div>
                    <div class="mt-8 content-center"><label
                            class="ml-3 text-sm font-bold text-gray-700 tracking-wide">密码</label><input
                            class="w-full content-center text-base px-4 py-2 border-b rounded-2xl border-gray-300 focus:outline-none focus:border-indigo-500"
                            type="" placeholder="请输入密码"></div>
                    <div class="flex items-center justify-between">
                        <div class="flex items-center"><input id=remember_me name=remember_me type=checkbox
                                class="h-4 w-4 bg-blue-500 focus:ring-blue-400 border-gray-300 rounded"><label
                                for=remember_me class="ml-2 block text-sm text-gray-900">记住我</label></div>
                        <div class=text-sm><a href=# class="text-indigo-400 hover:text-blue-500">忘记密码？</a></div>
                    </div>
                    <div><button type=submit
                            class="w-full flex justify-center bg-gradient-to-r from-indigo-500 to-blue-600 hover:bg-gradient-to-l hover:from-blue-500 hover:to-indigo-600 text-gray-100 p-4 rounded-full tracking-wide font-semibold shadow-lg cursor-pointer transition ease-in duration-500">登录</button></div>
                    <p class="items-center justify-center mt-10 text-center text-md text-gray-500">
                        <span>还没有账号？</span> <a href=#
                            class="text-indigo-400 hover:text-blue-500 no-underline hover:underline cursor-pointer transition ease-in duration-300">立即注册</a>
                    </p>
                </form>
            </div>
        </div>
    </div>
</div>

2、CSS

因为使用了 Tailwind CSS，所以我们只需额外再添加一点 CSS 代码即可。

.circles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.circles li {
    position: absolute;
    display: block;
    list-style: none;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    animation: animate 25s linear infinite;
    bottom: -150px;
}
.circles li:nth-child(1) {
    left: 25%;
    width: 80px;
    height: 80px;
    animation-delay: 0s;
}
.circles li:nth-child(2) {
    left: 10%;
    width: 20px;
    height: 20px;
    animation-delay: 2s;
    animation-duration: 12s;
}
.circles li:nth-child(3) {
    left: 70%;
    width: 20px;
    height: 20px;
    animation-delay: 4s;
}
.circles li:nth-child(4) {
    left: 40%;
    width: 60px;
    height: 60px;
    animation-delay: 0s;
    animation-duration: 18s;
}
.circles li:nth-child(5) {
    left: 65%;
    width: 20px;
    height: 20px;
    animation-delay: 0s;
}
.circles li:nth-child(6) {
    left: 75%;
    width: 110px;
    height: 110px;
    animation-delay: 3s;
}
.circles li:nth-child(7) {
    left: 35%;
    width: 150px;
    height: 150px;
    animation-delay: 7s;
}
.circles li:nth-child(8) {
    left: 50%;
    width: 25px;
    height: 25px;
    animation-delay: 15s;
    animation-duration: 45s;
}
.circles li:nth-child(9) {
    left: 20%;
    width: 15px;
    height: 15px;
    animation-delay: 2s;
    animation-duration: 35s;
}
.circles li:nth-child(10) {
    left: 85%;
    width: 150px;
    height: 150px;
    animation-delay: 0s;
    animation-duration: 11s;
}
@keyframes animate {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
        border-radius: 0;
    }

    100% {
        transform: translateY(-1000px) rotate(720deg);
        opacity: 0;
        border-radius: 50%;
    }
}

到这里，我们就制作完了，来看看效果吧：蓝色大气的登陆界面