@Html.TextArea("Body", null, new { cols = "55", rows = "10" })
or
@Html.TextAreaFor(x => x.Body, 10, 55, null)
or
@Html.TextAreaFor(x => x.Body, new { @id = "Body", @class = "form-control", rows = "50" })
@Html.TextArea("Body", null, new { cols = "55", rows = "10" })
or
@Html.TextAreaFor(x => x.Body, 10, 55, null)
or
@Html.TextAreaFor(x => x.Body, new { @id = "Body", @class = "form-control", rows = "50" })