Dear @marco90ch
we unfortunately do not have the capacity to try this here:
li#menu-item-214 {
margin-top: 20px;
}
We unfortunately do not have the capacity to really dig into each individual problem and can only give a limited support. Please have a look at CodeAcademy for a tutorial of CSS. Also have a look in our documentation here: http://laytheme.com/documentation.html#custom-css-styling.
Hope I cold help!
Best!
Marius