CSS: Table header colors

For my tables, I use the following Custom CSS – and they work great. However, I want to customize one table with a different table header color. I tried one of your earlier post replies adding name=”MyClassThatINamedThis” to the shortcode then tried the div#MyClassThatINamedThis along with several renditions of CSS but that doesn’t seem to work so I removed that CSS.

Any suggestions would be appreciated.

/* Colorize FileAway row hover color */
table[id^=”ssfa-table”].ssfa-minimalist > tbody > tr > td > a:hover
{
background-color: transparent;
color: #81d742!important;
cursor: default;
}

/* Colorize FileAway table headers */
table[id^=”ssfa-table”].ssfa-minimalist > thead > tr > th
{
background-color: #315FDB;
color: #ffffff!important;
cursor: default;
}