给图片添加边框

!DOCTYPE html
html
head
meta charset="UTF-8"
title给图片添加边框/title
style type="text/css"
/img{
border: 1px solid red;
}/
tr:nth-child(1){
background-color: #0000FF;

}
tr:nth-child(2){
background-color: red;

}
tr:nth-child(3){
background-color: #0000FF;

}
tr:nth-child(4){
background-color: red;

}
tr:nth-child(5){
background-color: #0000FF;

}

Header	Header	Header
Data	Data	Data
Data	Data	Data
Data	Data	Data
Data	Data	Data