Lightning Record Edit Form in Lightning web component

Lightning Record Edit Form

<template>
  <lightning-card>
    <lightning-record-edit-form object-api-name='Account' onsuccess={handleSuccess} 
      onerror={handleError} >
      <header class="slds-modal__header">
        <div class="slds-text-heading_medium slds-modal__title slds-hyphenate">New Account Details</div>
      </header>
      <div class="slds-page-header">
        <div class="slds-page-header__row">
          Account Detail
        </div>
      </div>
      <div class="slds-grid slds-gutters">
        <div class="slds-col slds-size_1-of-12">
          <span></span>
        </div>
        <div class="slds-col slds-size_5-of-12">
          <span>
            <lightning-input-field field-name="Name"></lightning-input-field>
            <lightning-input-field field-name="Customer_Name__c"></lightning-input-field>
            <lightning-input-field field-name="Opportunity__c"></lightning-input-field>
            <lightning-input-field field-name="TaxCode3__c"></lightning-input-field>
          </span>
        </div>
        <div class="slds-col slds-size_5-of-12">
          <span>
            <lightning-input-field field-name="CopyAccountValues__c"></lightning-input-field>
            <lightning-input-field field-name="TaxCode1__c"></lightning-input-field>
            <lightning-input-field field-name="TaxCode2__c"></lightning-input-field>
          </span>
        </div>
        <div class="slds-col slds-size_1-of-12">
          <span></span>
        </div>
      </div>
      <div class="slds-m-top_large slds-grid slds-grid_align-center slds-align--absolute-center">
        <lightning-button variant="brand" label="Cancel" type="cancel" onclick={handleCancel}></lightning-button>
         &nbsp;&nbsp; 
        <lightning-button  type="submit" variant="brand" label="Save"></lightning-button>
         &nbsp;&nbsp; 
        <lightning-button type="submit" variant="brand" label="Save & New" onclick={saveAndNewClick}></lightning-button>
      </div>
      <br/><br/>
    </lightning-record-edit-form>
  </lightning-card>
</template>