div.headerdiv{
    text-align: center;
    width: 1000px;
    margin: 0 auto;
}

div.profilelist{
    width : 950px;
    text-align: center;
    border: solid black 2px;
    margin: 0 auto;
}

div.profilecontent{
    text-align: center;
    width: 300px;
    border: 2px black solid;
    float: left;
    margin-top: 10px;
    margin-left: 10px;
}

div.profilecontent:hover{
    border: 2px pink solid;
}