Display tooltip while hovering on text in ASP.Net using CSS

Hi suhaas121,

Refer below code.

HTML

<asp:Label ID="lblBookmarktag" runat="server" />

Code

protected void Page_Load(object sender, EventArgs e)
{
    string pstext = "aspsnippets";
    string patext = "aspforums";
    string newBookmarktag = "<style>font.tip {border-bottom: 1px dashed;text-decoration: none}font.tip:hover {cursor: help;position: sticky}font.tip:hover span {background-color:#F0E6BC;text-align:center;color:Black;font-weight:bold;border: #c0c0c0 1px dotted;padding: 5px 20px 5px 5px;display: block;z-index: 100;left: 0px;margin: 10px;position: absolute;top: 10px;text-decoration: none;}</style><font style='background-color:yellow' class='tip'><a title='" + pstext + "'><span>" + patext + "</span></a></font>";
    lblBookmarktag.Text = newBookmarktag;
}