How to remove the blue line?

How to remove the blue line? i wanted it to be remove... how??

here's the picture:



thanks~

In CSS find:

Code:

.post {
background-color: #ffffff;
border-bottom-color: #0099cc;
border-bottom-style: solid;
border-bottom-width: 10px;
}

#0099cc - change for #ffffff

Or just add to CSS:

Code:

.post {
background-color: #ffffff;
border-bottom: 10px solid #ffffff;
}

oh ... thank you so much, but how can i remove that blue thing again in the main forum page?

here's the picture:

it didn't worked... T.T

anyone who can answer this?