table#reference1
{
margin-top: 10px;
margin-left: 5%;
margin-right: 5%;
width: 90%;
text-align: center;
font-size: 0.8em;
border: #C0C0C0 solid 1px;
border-collapse: collapse;
font-family: Times, "Times New Roman", sans-serif, Arial;
}

table#reference2
{
margin-top: 10px;
margin-left: 15%;
margin-right: 15%;
width: 70%;
text-align: center;
font-size: 0.8em;
border: #C0C0C0 solid 1px;
border-collapse: collapse;
font-family: Times, "Times New Roman", sans-serif, Arial;
}

table#reference3
{
text-align: left;
}

table#reference1 > tbody > tr > th:first-child {border-left: black solid 1px;} 
table#reference1 > tbody > tr > th:last-child {border-right: black solid 1px;} 
table#reference2 > tbody > tr > th:first-child {border-left: black solid 1px;} 
table#reference2 > tbody > tr > th:last-child {border-right: black solid 1px;} 

th
{
color: white;
}