ul.checkmarks li:before
{
    content: '✔';   
    margin-left: -1em;
    margin-right: .100em;
    color: green;
}

ul.checkmarks
{
   text-indent: -3px;
   list-style: none;
   list-style-position: outside;
   margin: 0 0 1.5em 1em;
}

.knoprechts
{
   float:right;
}

.beperkinput
{
   max-width:371px;
   width:100%;
}