ID为left的DIV标签，用CSS设置DIV的左边为红色实线，下面设置正确的是（） A: style=”border-top: B: ff0000 1 solid;” C: style=”border-left: 1, D: ff0000 ,solid;” E: style=”border-left: 1 F: ff0000 solid;” G: style=”border-right: 1, H: ff0000, dashed;”

请解释下列代码片段：1、border-style:solid;2、border-color: red green;3、border-width:1px 3px 5px;4、border-style:dashed double solid dotted;

When we gain a solid1)f with regards to our position in life, it makes it much easier to take forward steps with happiness and confidence.

border-color：red；border-style：solid；border-width：3px；可以简写为（）。 A: Aborder-color：red solid 3px B: Bborder-style：red solid 3px C: Cborder-width：red solid 3px D: Dborder：red solid 3px

The effective volume of aggregate is () A: Volume of solid aggregate B: volume of solid aggregate and surface voids C: volume of solid aggregate and surface voids not filled with asphalt D: volume of solid aggregate, surface voids and closed voids

border-line：solid

若在CSS样式表中有p{border: 7px solid orange},等同于以下哪种写法？（ ）。 A: p{border-style: 7px solid; border-color: orange} B: p{border-style: solid orange; border-width: 7px} C: p{border-width: 7px; border-style: solid; border-color: orange} D: p{border-width: solid; border-style: 7px; border-color: orange}

113.有样式定义如下: div.parent { width:100px; height:70px; border:1px solid gray; } div.child { width:80px; height:30px; border:1px solid black; background-color:silver; } 同时,有 html 代码如下所示: 1 2 第二个 div 在页面上的最终位置是( )。 1 2 1 2

border:1px solid

have a solid idea