这里'p'标签用背景颜色覆盖整行,而'p1'标签仅在文本上显示背景颜色.

h1 {
  color: red;
  font-weight: bolder;
}

#c {
  background-color: #096;
}

h3 {
  font-family: "Palatino Linotype";
}

#c2 {
  color: #900;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 40px;
}

p1 {
  font-size: 36px;
}

xcvxcv
xcvcxv 

xcvxcv
xcvxvd
sdfdsf
sdfdsfsfd
 

p1 { 
  font-size: 36px;
  display: block;
}