demo

<template>
  <div class="bg-container">
    <div class="login-form">
      <h2>梅赛德斯-奔驰文化中心商城后台管理系统</h2>
      <div>
        <el-form
          ref="loginForm"
          :model="form"
          :rules="rules"
          label-width="80px"
          class="login-box"
        >
          <el-form-item label="账号" prop="username">
            <el-input
              type="text"
              placeholder="请输入账号"
              v-model="form.username"
            />
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input
              type="password"
              placeholder="请输入密码"
              v-model="form.password"
            />
          </el-form-item>
          <el-form-item>
            <el-button type="primary" @click="onSubmit('loginForm')"
              >登录</el-button
            >
          </el-form-item>
        </el-form>
      </div>
    </div>
    <div class="footer">
      <div class="copyright">
        <span>Copyright &copy; 2019 东方明珠新媒体股份有限公司</span>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  name: "login",
  data() {
    return {
      form: {
        username: "",
        password: ""
      },
      // 表单验证，需要在 el-form-item 元素中增加 prop 属性
      rules: {
        username: [
          { required: true, message: "账号不可为空", trigger: "blur" }
        ],
        password: [{ required: true, message: "密码不可为空", trigger: "blur" }]
      }
    };
  },
  methods: {
    onSubmit(formName) {
      // 为表单绑定验证功能
      this.$refs[formName].validate(valid => {
        if (valid) {
          // 使用 vue-router 路由到指定页面，该方式称之为编程式导航
          this.$router.push("/home");
        } else {
          return false;
        }
      });
    }
  }
};
</script>
<style scoped lang="scss">
.bg-container {
  width: 100%;
  height: 100%;
  overflow: hidden;
  margin: 0;
  background-image: url(../../assets/login_bg.jpg);
}
.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  margin: 0 auto;
  height: 30px;
  line-height: 20px;
  padding-top: 5px;
  padding-bottom: 5px;
}
.footer .copyright {
  font-size: 12px;
  text-align: center;
  width: 100%;
  color: #fff;
  opacity: 0.5;
}
.login-form {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  h2 {
    color: #fff;
  }
}
.login-box {
  border: 1px solid #dcdfe6;
  width: 350px;
  margin: 80px auto;
  padding: 35px 35px 15px 35px;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  box-shadow: 0 0 25px #909399;
}
</style>
<style>
.login-box .el-form-item__label {
  color: #fff;
}
</style>

背景图

demo

<template>
  <div class="bg-container">
    <div class="login-form">
      <h2>梅赛德斯-奔驰文化中心商城后台管理系统</h2>
      <div>
        <el-form
          ref="loginForm"
          :model="form"
          :rules="rules"
          label-width="80px"
          class="login-box"
        >
          <el-form-item label="账号" prop="username">
            <el-input
              type="text"
              placeholder="请输入账号"
              v-model="form.username"
            />
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input
              type="password"
              placeholder="请输入密码"
              v-model="form.password"
            />
          </el-form-item>
          <el-form-item>
            <el-button type="primary" @click="onSubmit('loginForm')"
              >登录</el-button
            >
          </el-form-item>
        </el-form>
      </div>
    </div>
    <div class="footer">
      <div class="copyright">
        <span>Copyright &copy; 2019 东方明珠新媒体股份有限公司</span>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  name: "login",
  data() {
    return {
      form: {
        username: "",
        password: ""
      },
      // 表单验证，需要在 el-form-item 元素中增加 prop 属性
      rules: {
        username: [
          { required: true, message: "账号不可为空", trigger: "blur" }
        ],
        password: [{ required: true, message: "密码不可为空", trigger: "blur" }]
      }
    };
  },
  methods: {
    onSubmit(formName) {
      // 为表单绑定验证功能
      this.$refs[formName].validate(valid => {
        if (valid) {
          // 使用 vue-router 路由到指定页面，该方式称之为编程式导航
          this.$router.push("/home");
        } else {
          return false;
        }
      });
    }
  }
};
</script>
<style scoped lang="scss">
.bg-container {
  width: 100%;
  height: 100%;
  overflow: hidden;
  margin: 0;
  background-image: url(../../assets/login_bg.jpg);
}
.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  margin: 0 auto;
  height: 30px;
  line-height: 20px;
  padding-top: 5px;
  padding-bottom: 5px;
}
.footer .copyright {
  font-size: 12px;
  text-align: center;
  width: 100%;
  color: #fff;
  opacity: 0.5;
}
.login-form {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  h2 {
    color: #fff;
  }
}
.login-box {
  border: 1px solid #dcdfe6;
  width: 350px;
  margin: 80px auto;
  padding: 35px 35px 15px 35px;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  box-shadow: 0 0 25px #909399;
}
</style>
<style>
.login-box .el-form-item__label {
  color: #fff;
}
</style>

背景图