CSS (the third)

Background image positioning:

All icons are placed in a PNG file in transparent format and then invoked by determining the location in the PNG image. (called in multiple pictures)

First measure the size of small icons with QQ

Small Div border is consistent with icon size

Width:14px

Hight:14px

border:1px

Backgrouyd-image:url (.. /image/ocon.png)

backfround-position:0px-52px; (The downward ordinate is negative, and to the right is negative)

Border-collaps:collaps; Thin Line

Td

{

Border:solid 1px red;

}

#d1 a{} id=d1 The style of the A label below the label

#d1 #d2 a id=d1 below the D2 a label style

#d1, #d2 d1,d2 a common style

Td,th sharing a Style

Row of the table head th scope= "Row"

Column table header th scope= "col"

Remove the underline from the link

A

{

Text-decration:none;

}

The div attribute is #d1, after the mouse is put on the #d1: hover mouse becomes hand type

#d1: hover

{

Cursor:pointer;

}

Full-page common style: with tags

Shared: Class label

Unique: ID Tag

Text content in Div exceeds border

Overflow:hidden (Hidden)

Overflow:auto; (content beyond the display scroll bar)

Overflow:scroll (scroll bar is always displayed regardless of whether the content is exceeded)

CSS (the third)