.sample_01{
width: 550px;
table-layout: fixed;
border-collapse: collapse;
}
.sample_01 th{
width: 25%;
padding: 6px;
text-align: left;
vertical-align: top;
color: #333;
background-color: #66CCCC;
border: 1px solid #b9b9b9;
}
.sample_01 td{
width: 25%;
padding: 6px;
background-color: #fff;
border: 1px solid #66CCCC;
}