基于vue的登录模板

<template>
    <div class="login">
        <div class="login_box">
            <h1> 登录系统</h1>
            <el-input prefix-icon="el-icon-search" v-model="form.username"
                :class="{ username: username, usernames: usernames }" @focus="uname" @blur="unames"></el-input>
            <el-input prefix-icon="el-icon-lock " v-model="form.password"
                :class="{ username: password, usernames: passwords }" show-password @focus="pad" @blur="pads"></el-input>
            <el-button type="primary" @click="submits">登录</el-button>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            form: {
                username: '',
                password: '',
            },
            username: true,
            usernames: false,
            password: true,
            passwords: false,
        }
    },
    methods: {
        // 登录事件
        submits() {
            this.$router.push('/index')
        },
        // 获取焦点
        //账号
        uname() {
            this.username = false;
            this.usernames = true;
        },
        // 密码
        pad() {
            this.password = false;
            this.passwords = true;
        },
        // 失去焦点
        // 账号
        unames() {
            this.username = true;
            this.usernames = false;
            if (this.form.username !== "") {
                this.username = false;
            }
        },
        // 失去焦点
        // 密码
        pads() {
            this.password = true;
            this.passwords = false;
            if (this.form.password !== "") {
                this.password = false;
            }
        },
    }
}
</script>

<style lang="less" scoped>
.login::after {
    content: '';
    /* 必须的属性 */
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: linear-gradient(to bottom right, #dbe464, rgb(123, 218, 162), #f18e9b);
    background-size: cover;
    z-index: -1;
}

.login {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;

    .username::after,
    .usernames::after,
    .password::after,
    .passwords::after {
        content: "账号";
        color: #c0c4cc;
        display: block;
        top: 13px;
        left: 33px;
        position: absolute;
        font-size: 14px;
        transition: all 0.5s;
        // 鼠标点击穿透
        pointer-events: none;
    }

    .usernames::after,
    .password::after,
    .passwords::after {
        content: "账号";
        top: -7px;
        color: #409eff;
    }

    input {
        position: relative;

    }

    input::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        filter: blur(10px);
        z-index: -1;
    }

    .password::after {
        content: "密码";
    }

    .passwords::after {
        content: "密码";
    }

    .login_box {
        position: relative;
        width: 400px;
        height: 300px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-wrap: wrap;
        padding: 0 20px;
        border-radius: 10px;
        border: 1px solid rgb(255, 255, 255, 0.5);
        border-right: 1px solid rgba(63, 62, 62, 0.2);
        border-bottom: 1px solid rgba(63, 62, 62, 0.2);

        background-color: #ffffff45;

        h1 {
            position: relative;
            color: #ffffff;
            font-size: 25px;
        }

        .el-button {
            width: 100%;
        }
    }

    /* 小于等于手机屏幕尺寸 400px 时样式 */
    @media screen and (max-width: 500px) {

        /* 添加您想要的样式 */
        .login_box {
            height: 280px;
            width: 85%;
        }

    }
}
</style>