css中几个常用的
变量表示
background: rgb(50, 50, 50);背景background-image:url(D:/smiley.gif);加载图片做背景background-repeat:no-repeat;图像不够大时,不重复铺垫background-attachment:fixed;固定大小,[scroll]width宽度border: 1px solid rgb(50, 50, 50);边框border-radius:5px圆角边框border-bottom-color:#ff0000;边框,上左下有它也具有border-image: url(border.png) 30 round可以图像padding:100px 40px 300px 200px;内容和窗体的距离上,左,下,右color颜色cursor光标font-size:2px字体大小font-style:[normal italic oblique]字体风格margin:2cm 4cm 3cm 4cm;边距text-align:center字体对齐height高度
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