ife day4: 背景边框列表链接

背景

• background
• background-color
• background-image
• background-repeat
• background-position

    body {
        font-family: sans-serif;
        background-color: #F0F8FF;
        border: 40px solid black;
        border-image-source: url(https://mdn.mozillademos.org/files/13060/border-image.png);
        border-image-slice: 40;
        border-image-repeat: round;
    }
  

边框

• border
• border-color
• border-style
• border-width
• border-radius

列表

• list-style
• list-style-type
• list-style-image

链接

• a:link
• a:visited
• a:hover
• a:active