cinyipang

.ibox { margin-bottom: 20px; }
.ibox .title { background-color: #dfdfdf; color: #3b3b3b; }
.ibox .title h5 { font-size: 18px; }
.ibox .content { background-color: #ffffff; padding: 15px; }
.ibox .footer { background-color: #dfdfdf; }

cinyipang

$primary-background: #ffffff;
$secondary-background: #dfdfdf;

.ibox{ 
    margin-bottom: 20px; 
    .title { 
        background-color: $secondary-background; 
        color: #3b3b3b; 
        h5 {  font-size: 18px; }
    }

cinyipang

<div class="ibox">
  <div class="title">
    <h5>THIS IS TITLE</h5>
  </div>
  <div class="content">
      THIS IS CONTENT
  </div>
  <div class="footer">
      THIS IS FOOTER
  </div>

cinyipang

<table cellspacing="0" cellpadding="0" style="width:100%">
    <tr>
        <td bgcolor="#f1efed" style="text-align:center;padding:20px 0;">
            <table align="center" bgcolor="#ffffff" cellspacing="0" cellpadding="0" style="width:500px;">
                <tr>
                    <td bgcolor="#f1efed" style="padding-bottom:20px; text-align:center;" >
                        <img style="width:220px;height:50px" src="data:image/png;base64,....." />
                    </td>
                </tr>
                <tr>

cinyipang

[HttpPost]
public async Task<IActionResult> SendMail()
{
    try
    {
        //point to your wwwroot folder
        string templatePath = $"{env.WebRootPath}/Templates";
        //setup Razor Light Engine
        var engine = new RazorLightEngineBuilder()
            .UseFilesystemProject(templatePath)

cinyipang

[Route("upload/result")]
[HttpPost]
public async Task<IActionResult> UploadResult([FromForm]UploadImageModel model)
{
    if(model.Files.Count == 0)
        return BadRequest("result picture not found");

    var file = model.Files[0];

    if (file.Length / 1024 / 1024 > 2)