Hi again;
I tried it and revised by me.
<style>
html {
min-height: 100%;
background: -webkit-linear-gradient(left, #D8C4A3, #E0B875);
background: -o-linear-gradient(right, #D8C4A3, #E0B875);
background: -moz-linear-gradient(right, #D8C4A3, #E0B875);
background: linear-gradient(to right, #D8C4A3, #E0B875);
background-color: #D8C4A3;
}
</style>
<table style="border: 10px #683C11 solid; width: 90%; height: 100%; margin-left: 5%; margin-right: 5%;">
<th style="border: 8px #683C11 solid;">
<p><img class="pull-center" style="display: block; margin-left: auto; margin-right: auto;" src="https://arormanurunleri.com/images/mailheader.png" alt="" /></p>
</tr>
<td style="border: 5px #683C11 solid;">
<p style="text-align: center;"><span style="color: #000000;"> </span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>Özel ölçü kesimine ilişkin sipariş detaylarınız aşağıdadır. Siparişinize ilişkin en kısa sürede tarafınıza geri dönülecektir.</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>İlginiz için teşekkür ederiz.</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{uzunluk:label}: {uzunluk:value} cm</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{en:label}: {en:value} cm</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{kalinlik:label}: {kalinlik:value} {birim:value}</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{adet:label}: {adet:value}</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{agaccinsi:label}: {agaccinsi:value}</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{aciklama:label}: {aciklama:value}</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"> </span></p>
</tr>
<td style="border: 5px #683C11 solid;">
<p style="text-align: center;"><span style="text-align: center; color: #683c11; font-size:24px;"><strong>AR Orman Ürünleri</strong></span></p>
<p style="text-align: center;"><span style="text-align: center; color: #683c11; font-size:22px;"><strong>Ereğli Cad. No:32/B Siteler - Ankara</strong></span></p>
<p style="text-align: center;"><span style="text-align: center; color: #683c11; font-size:22px;"><strong>0312 349 4295</strong></span></p>
<p style="text-align: center;"><span style="text-align: center; color: #683c11; font-size:22px;"><strong>0506 280 2282</strong></span></p>
After that I saved my code. But my codes are striping like this. And here is stripping codes.
<p><img class="pull-center" style="display: block; margin-left: auto; margin-right: auto;" src="images/mailheader.png" alt="" /></p>
<p style="text-align: center;"> </p>
<p style="text-align: center;"><span style="color: #000000;"><strong>Özel ölçü kesimine ilişkin sipariş detaylarınız aşağıdadır. Siparişinize ilişkin en kısa sürede tarafınıza geri dönülecektir.</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>İlginiz için teşekkür ederiz.</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{uzunluk:label}: {uzunluk:value} cm</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{en:label}: {en:value} cm</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{kalinlik:label}: {kalinlik:value} {birim:value}</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{adet:label}: {adet:value}</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{agaccinsi:label}: {agaccinsi:value}</strong></span></p>
<p style="text-align: center;"><span style="color: #000000;"><strong>{aciklama:label}: {aciklama:value}</strong></span></p>
<p style="text-align: center;"> </p>
<p style="text-align: center;"><span style="text-align: center; color: #683c11; font-size: 24px;"><strong>AR Orman Ürünleri</strong></span></p>
<p style="text-align: center;"><span style="text-align: center; color: #683c11; font-size: 22px;"><strong>Ereğli Cad. No:32/B Siteler - Ankara</strong></span></p>
<p style="text-align: center;"><span style="text-align: center; color: #683c11; font-size: 22px;"><strong>0312 349 4295</strong></span></p>
<p style="text-align: center;"><span style="text-align: center; color: #683c11; font-size: 22px;"><strong>0506 280 2282</strong></span></p>