I work on the website archi-wiki,org, we have a weekly mail and I'm doing the css for it. Unfortunatly, we use smarty template for this mail and I haven't found a way to use css other than inline css. The problem I face is that some of the css properties I have written doesn't get used. In the following template code, it concerns the properties justify-content:space-between; flex-wrap:wrap; from the div id="container" and the properties flex-direction: column; align-items:center; from the a id="image".
<!DOCTYPE HTML>
<html lang="{$wiki.lang}">
<head>
<meta charset="UTF-8" />
<title>{$title}</title>
</head>
<body style='margin:0px auto; background-color:#fafafa; font-family: "Open Sans",Helvetica,Roboto,Arial,sans-serif; font-weight: normal; color: #34414a;width:fit-content;'>
<a href="{$wiki.url}" target="_blank"><img src="{$wiki.url}skins/archi-wiki/resources/img/logo_archi_wiki.png" alt="Archi-Wiki Logo" height="80"/></a>
<p> Bonjour,</p>
<p>{$intro}</p>
<p>
Voici les pages qui ont été créées ou modifiées cette semaine sur <a href="{$wiki.url}" target="_blank" style="color: #a65447">{$wiki.name}</a>.
</p>
{foreach $changeLists as $namespace=>$recentChanges}
{foreach $recentChanges as $groupName=>$group}
{if $groupName != '*'}
<h3 style="margin-left:0em; width:max-content; border-bottom: 2px solid #d96e5d;">{$groupName}</h3>
{else if $namespace != null}
<h3 style="margin-left:0em; width:max-content; border-bottom: 2px solid #d96e5d;">{$namespace}s</h3>
{/if}
<div ïd="container" style="display:flex; max-height:min-content; justify-content:space-between; flex-wrap:wrap;">
<div>
{if isset($group.new)}
<h4 style="margin-left:1.5em; width:max-content; border-bottom: 1px dotted #d96e5d;">Nouvelles pages :</h4>
<ul>
{foreach $group.new as $change}
<li><a href="{$wiki.url}{$change.title|escape:url}" target="_blank" style="color: #a65447;">{$change.shortTitle|replace:($namespace|cat:':'):''}{if isset($change.quartier)} ({$change.quartier}){/if}</a> {$val=$change.newlen-$change.oldlen} {if $val>500} <span style="color: #006400; font-weight: bold;">({$val} nouveaux caractères)</span> {elseif $val > 1} <span style="color: #006400;">({$val} nouveau caractère)</span> {elseif $val > -1} <span style="color: black;">({$val|replace:'-':''} nouveau caractère)</span> {elseif $val > -2} <span style="color: black;">({$val|replace:'-':''} caractère supprimé)</span> {elseif $val > -500} <span style="color: #8b0000;">({$val|replace:'-':''} caractères supprimés)</span> {else} <span style="color: #8b0000; font-weight: bold;">({$val|replace:'-':''} caractères supprimés)</span> {/if}</li>
{/foreach}
</ul>
{/if}
{if isset($group.edit)}
<h4 style="margin-left:1.5em; width:max-content; border-bottom: 1px dotted #d96e5d;">Pages modifiées :</h4>
<ul>
{foreach $group.edit as $change}
<li><a href="{$wiki.url}{$change.title|escape:url}" target="_blank" style="color: #a65447;">{$change.shortTitle|replace:($namespace|cat:':'):''}{if isset($change.quartier)} ({$change.quartier}){/if}</a> {$val=$change.newlen-$change.oldlen} {if $val>500} <span style="color: #006400; font-weight: bold;">({$val} nouveaux caractères)</span> {elseif $val > 1} <span style="color: #006400;">({$val} nouveau caractère)</span> {elseif $val > -1} <span style="color: black;">({$val|replace:'-':''} nouveau caractère)</span> {elseif $val > -2} <span style="color: black;">({$val|replace:'-':''} caractère supprimé)</span> {elseif $val > -500} <span style="color: #8b0000;">({$val|replace:'-':''} caractères supprimés)</span> {else} <span style="color: #8b0000; font-weight: bold;">({$val|replace:'-':''} caractères supprimés)</span> {/if}</li>
{/foreach}
</ul>
{/if}
</div>
{if isset({$group.biggestChange})}<a id="image" href="{$wiki.url}{$group.biggestChange|escape:url}" style="color:#34414a; text-decoration: none; display:flex; flex-direction: column; align-items:center;"><img src="{$group.image}" height="250px"/><p style="margin:0px">{$group.biggestChange}</p></a>{/if}
</div>
{/foreach}
{/foreach}
<p>Pour ne plus recevoir les alertes mail, il vous suffit de vous connecter à votre profil <a href="{$wiki.url}Spécial:Préférences" target="_blank">{$wiki.name}</a>.</p>
</body>
Here's some code from the resulting mail :
...
<div style="display:flex;max-height:min-content">
<div>
<h4 style="margin-left:1.5em;width:max-content;border-bottom:1px dotted #d96e5d"> Nouvelles pages :</h4>
<ul>...</ul>
<h4 style="margin-left:1.5em;width:max-content;border-bottom:1px dotted #d96e5d"> Pages modifiées :</h4>
<ul>...</ul>
</div>
<a href="..." style="color:#34414a;text-decoration:none;display:flex">
<img src="..." height="250px">
<p style="margin:0px"> Adresse:24 ...</p>
</a>
</div>
...
Edit : the same problem appears when I do css in the header :
<!DOCTYPE HTML>
<html lang="{$wiki.lang}">
<head>
<meta charset="UTF-8" />
<title>{$title}</title>
<style type="text/css">
{literal}
h4{
margin-left:1.5em;
width:max-content;
border-bottom: 1px dotted #d96e5d;
}
h3{
margin-left:0em;
width:max-content;
border-bottom: 2px solid #d96e5d;
}
#container{
display:flex;
max-height:min-content;
justify-content:space-between;
flex-wrap:wrap;
}
#image{
color:#34414a;
text-decoration: none;
display:flex;
flex-direction: column;
align-items:center;
}
{/literal}
</style>
</head>
<body style='margin:0px auto; background-color:#fafafa;font-family: "Open Sans",Helvetica,Roboto,Arial,sans-serif;font-weight: normal;color: #34414a; width:fit-content; '>
<a href="{$wiki.url}" target="_blank"><img src="{$wiki.url}skins/archi-wiki/resources/img/logo_archi_wiki.png" alt="Archi-Wiki Logo" height="80"/></a>
<p> Bonjour,</p>
<p>{$intro}</p>
<p>
Voici les pages qui ont été créées ou modifiées cette semaine sur <a href="{$wiki.url}" target="_blank" style="color: #a65447">{$wiki.name}</a>.
</p>
{foreach $changeLists as $namespace=>$recentChanges}
{foreach $recentChanges as $groupName=>$group}
{if $groupName != '*'}
<h3>{$groupName}</h3>
{else if $namespace != null}
<h3>{$namespace}s</h3>
{/if}
<div id="container"">
<div>
{if isset($group.new)}
<h4>Nouvelles pages :</h4>
<ul>
{foreach $group.new as $change}
<li><a href="{$wiki.url}{$change.title|escape:url}" target="_blank" style="color: #a65447;">{$change.shortTitle|replace:($namespace|cat:':'):''}{if isset($change.quartier)} ({$change.quartier}){/if}</a> {$val=$change.newlen-$change.oldlen} {if $val>500} <span style="color: #006400; font-weight: bold;">({$val} nouveaux caractères)</span> {elseif $val > 1} <span style="color: #006400;">({$val} nouveau caractère)</span> {elseif $val > -1} <span style="color: black;">({$val|replace:'-':''} nouveau caractère)</span> {elseif $val > -2} <span style="color: black;">({$val|replace:'-':''} caractère supprimé)</span> {elseif $val > -500} <span style="color: #8b0000;">({$val|replace:'-':''} caractères supprimés)</span> {else} <span style="color: #8b0000; font-weight: bold;">({$val|replace:'-':''} caractères supprimés)</span> {/if}</li>
{/foreach}
</ul>
{/if}
{if isset($group.edit)}
<h4>Pages modifiées :</h4>
<ul>
{foreach $group.edit as $change}
<li><a href="{$wiki.url}{$change.title|escape:url}" target="_blank" style="color: #a65447;">{$change.shortTitle|replace:($namespace|cat:':'):''}{if isset($change.quartier)} ({$change.quartier}){/if}</a> {$val=$change.newlen-$change.oldlen} {if $val>500} <span style="color: #006400; font-weight: bold;">({$val} nouveaux caractères)</span> {elseif $val > 1} <span style="color: #006400;">({$val} nouveau caractère)</span> {elseif $val > -1} <span style="color: black;">({$val|replace:'-':''} nouveau caractère)</span> {elseif $val > -2} <span style="color: black;">({$val|replace:'-':''} caractère supprimé)</span> {elseif $val > -500} <span style="color: #8b0000;">({$val|replace:'-':''} caractères supprimés)</span> {else} <span style="color: #8b0000; font-weight: bold;">({$val|replace:'-':''} caractères supprimés)</span> {/if}</li>
{/foreach}
</ul>
{/if}
</div>
{if isset({$group.biggestChange})}<a id="image" href="{$wiki.url}{$group.biggestChange|escape:url}"><img src="{$group.image}" height="250px"/><p style="margin:0px">{$group.biggestChange}</p></a>{/if}
</div>
{/foreach}
{/foreach}
<p>Pour ne plus recevoir les alertes mail, il vous suffit de vous connecter à votre profil <a href="{$wiki.url}Spécial:Préférences" target="_blank">{$wiki.name}</a>.</p>
</body>
I have figured it out, I used multiples table with the smaller one having align="left" and in the td cells, it goes in the right place without having mch to add in css. I have removed a lot of my css