I am having serious trouble with my table styles in the below assignment. I need help with what I am doing wrong in the table layout, elements, and columns. Here is the task:

Table Layout

Open the mi_tables.css and go to the Table Styles section and add a style rule for the table element that:

sets the background color to a linear gradient that goes to the bottom of the table background starting from rgb(190, 215, 255) and ending in black and

adds a 5-pixels solid gray border.

Table Elements

For every th and td element in the table, create a style rule that:

adds a 3-pixel solid gray border,

sets the line height to 1.4em, and

sets the padding space to 8 pixels.

For every th element, create a style rule that:

sets the background color to black,

sets the font color to rgb(130, 210, 255), and

sets the font weight to normal.

For every td element, create a style rule that:

sets the font color to white,

sets the font size to 0.9em, and

aligns the cell text with the top of the cell.

Table Column Styles

Go to the Column Styles section. Create a style rule for col elements with the ID firstCol that sets the column width to 24%.

Create a style rule for col elements belonging to the dataCols class that sets the column width to 19%.

Table Header Styles

Go to the Table Header Styles section. Create a style rule for the table header row group including every row within that row group that sets the row height to 60 pixels.

For the first th element in the first row of the table header row group, create a style rule that sets its font size to 2em. (Hint: Use the first-of-type pseudo-class to select the first table row and first heading cell.)

For th elements in the first row of the table header row group that are not the first heading cell, create a style rule that sets the background color to transparent and the font color to black. (Hint: use the not selector with the first-of-typepseudo-class to select headings that are not first in the table row.)

Instructions

Complete the Table Layout step described above.

Complete the Table Elements step described above.

Complete the Table Header Stylesstep described above.

Here is what I have so far:

/* Table Styles */ table { background: linear-gradient (rgb(190, 215, 255), black); border: 5px solid gray; } th td { border: 3px solid gray; line-height: 1.4em; padding: 8px; }

th { background-color: black; color: rgb(130,210,255); font-weight:normal; } td { color: white; font-weight: 0.9em; text-align: top; }

/* Column Styles */ #firstCol { width: 24%; } .dataCols span { width: 19%; }

/* Table Header Styles */ table thead tr { height: 60px; }

table thead tr:first-of-type th:first-of-type { font-size: 2em; }

table thead tr:first-of-type th:not(:first-of-type) { background-color: transparent; color: black; }