<fieldset>
<legend align="center">
Ma légende
</legend>
mon texte
</fieldset>
<style type="text/css">
.field-css {
-webkit-box-sizing: content-box; -moz-box-sizing: content-box; box-sizing: content-box; width: 150px; border: 2px solid rgba(0,150,255,0.91); -webkit-border-radius: 10px; border-radius: 10px; font: normal 14px/1 "Times New Roman", Times, serif; color: rgba(0,0,0,1); -o-text-overflow: ellipsis; text-overflow: ellipsis
}
</style>
<fieldset class="field-css" >
<legend align="center">
Ma légende
</legend>
mon texte
</fieldset>