.glx_img{
    display: block; margin-left: auto; margin-right: auto;
    width: 80%;
    margin-top: 5px;
    margin-bottom: 5px;
}

table.glx_tbl { border: 1px #ccc solid; border-collapse: collapse; margin: 0px 0px 0px 0px; }
table.glx_tbl td {  border: 1px #ccc solid;      padding: 3px 5px 3px 5px;     ;}
table.glx_tbl th {  border: 1px #ccc solid;    padding: 3px 5px 3px 5px; background-color: lavender    ;}
table.glx_tbl tr:nth-child(even) {background:   #eee }
table.glx_tbl tr:nth-child(odd) {background:  lavender  }