How to do padding in title or description using script

[jeevitha]

<span style = "color:#5adf14;font-size:15px;"> Title</span>
var a = sdk.getWidget( 'timeline4' );
a.m_enablehtmlformate.subtitle = true;
a.m_enablehtmlformate.title = true;
a.m_enablehtmlformate.xaxis = true;
a.m_enablehtmlformate.yaxis = true;
a.m_enablehtmlformate.secondaryaxis = true;