Server tag is not well-formed

Question

It says that my server tag is not well-formed.

<asp:TextBox ID="TextBox1" runat="server" placeholder="Fullname"style="width:400px; height:25px; font-family:'Century Gothic'; -webkit-border-radius:5px; border-style:none; margin-left:10px;">
</asp:TextBox>

Answer 1

You may try with following:

<asp:TextBox ID="TextBox1" runat="server" placeholder="Fullname" style="width:400px; height:25px; font-family:'Century Gothic'; -webkit-border-radius:5px; border-style:none; margin-left:10px;">
</asp:TextBox>

Saw that no space in between the ending double quote for placeholder and style.