$(this).css( "width",function(index,value) {return parseFloat(value)*1.2;});的含义?其中index作用是?function(index,value) {return parseFloat(value)*1.2;}的含义,及其作用?

CSS里 width:inherit $(this).css( width,function(index,value) {return parseFloat(value)*1.2;});的含义?其中index作用是?function(index,value) {return parseFloat(value)*1.2;}的含义,及其作用? css中 @media screen and (max-width:640px){} onload=javascript:if(this.width>screen.width-350)this.width=screen.width-350> c#中this.Width与this.ClientRectangle.Width区别? CSS里border-bottom-width:thin;是什么意思;什么时候用到 border-bottom-width:thin; border-bottom-width:thin;与boder-bottom:1px solid #000有什么区别; css #div1 {width:350px;height:70px;padding:10px;border:1px solid #aaaaaa;} screen.width*0.35) this.width=screen.width*0.40border=0> 这是啥? this.width=225; border=0 CSS中,width、 line-height和行框的问题有几个疑问：1、比如这么一段内容This is text,some of whick hs ,plus other textthat is strong strongly emphasized and that islarger than the surrounding text.三行的line-height都是12px,但 CSS中class和id的区别例如：CSSBBS新手教程第一课div{ width:100px; height:100px; border:1px solid #000; float:left; background:#99FF00; margin-left:10px;}.css{ background:#FFFF00}#css{ background:#00FFFF}直接div.css#css我修改运行 H1.mylayout {border-width:1; ...请问这里的H1.mylayout是什么意思呢?H1.mylayout {border-width:1; border:solid; text-align:center; color:red} CSS内部样式中,请问这里的H1.mylayout是什么意思呢? CSS里面这种写法代表的是什么?.index_boxl .listcs1 dd.cg1::before { border-width:16px;top:-27px; } dd.cg1::before这句话是什么意思?作用是? 看到这两幅图不知道大家有什么感想?screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new windownCTRL+Mouse wheel to zoom in/out';} onmouseover=if(this.width>screen.width*0.7) {this.resized this._container.style.width = w + px; this._container.style.height = h + px; 600 )this.width= 600 ; border=0>'600')this.width='600'; border=0> 在图片后面看到的. CSS是什么意思? CSS outline: