!important CSS modifications

Last I had to modify a custom page in SharePoint. I added some css but the hyperlinks always get the default markup. To overwrite the default markup I used the important keyword:

<style type="text/css">
        text-decoration:none !important;
        color:#676767 !important;
        width: 125px;
        height: 125px;
        font-size: medium;
        text-align: center;
        background-color: #CCEBFF;

More information about this keyword is on the W3.org website.