使用elementUI制作简易登录页面

<template>
  <div id="app">
    <div id="admin">
      <div class="pos" v-loading="loading">
        <h1 class="adminh1">用户登录</h1>
        <el-form
          :model="ruleForm"
          status-icon
          :rules="rules"
          ref="ruleForm"
          label-width="100px"
          class="demo-ruleForm"
        >
          <el-form-item label="用户名：" prop="pass">
            <el-input
              prefix-icon="el-icon-user"
              style="width: 250px"
              type="text"
              v-model="ruleForm.pass"
              autocomplete="off"
            ></el-input>
          </el-form-item>
          <el-form-item label="密 码：" prop="checkPass">
            <el-input
              prefix-icon="el-icon-menu"
              style="width: 250px"
              show-password
              type="password"
              v-model="ruleForm.checkPass"
              autocomplete="off"
            ></el-input>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" @click="submitForm('ruleForm')"
              >提交</el-button
            >
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  name: "app",
  data() {
    var validatePass = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请输入用户信息"));
      } else {
        if (this.ruleForm.checkPass !== "") {
          this.$refs.ruleForm.validateField("checkPass");
        }
        callback();
      }
    };
    var validatePass2 = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请输入密码"));
      } else if (value.length < 8 || value.length > 13) {
        callback(new Error("长度必须在8-12之内!"));
      } else {
        callback();
      }
    };
    return {
      loading: false,
      ruleForm: {
        pass: "",
        checkPass: "",
      },
      rules: {
        pass: [{ validator: validatePass, trigger: "blur" }],
        checkPass: [{ validator: validatePass2, trigger: "blur" }],
      },
    };
  },
  methods: {
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          this.loading = true;
          setTimeout(() => {
            this.loading = false;
          }, 2000);
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    },
  },
};
</script>
<style>
* {
  padding: 0;
  margin: 0;
}
body {
  background: rgb(135, 206, 235);
}
#app {
  font-family: "Avenir", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: #2c3e50;
}
#admin {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -200px;
  margin-left: -250px;
  width: 500px;
  height: 400px;
  background: #fff;
  border-radius: 10%;
  box-shadow: 8px 10px 10px rgb(177, 223, 242);
}
.adminh1 {
  margin: 20px 0;
  text-shadow: 10px 13px 3px rgb(207, 207, 207);
  text-align: center;
}
.pos {
  width: 450px;
  height: 350px;
  position: absolute;
  top: 25px;
  left: 25px;
}
</style>