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Css+div
Hyperlinks:<aHert= " "Target (how hyperlinks are opened)= "Self"or "New (open form)"></a>Anchor point: Special application of Hyperlinks<ahref= "#1"...> </a><aname= "1"> </a>table: Container, you can divide this page into regions table cannot move Div: Layer label (default line) set position by coordinates, can be arbitrarily moved table cell can drag and drop more conducive to site optimization<Div> </Div>Css:style: Style sheet controls the style of the label body and all the tags inside the body can be added Stylestyle: style sheet inline style sheet: The style style sheet is written in the Body property position when the stylesheet: written within the head range, To control the style of writing labels on the current page .<Head><style>Body{ /*set the color of the body tag*/Background-color:#309}</style></Head>external style sheet: Link CSS files via link tags play a role in macro-control, later maintenance is convenient<Head>selector: How to control HTML tags with an external style sheet<Linktype= "Text/css"href= "Css/style.css"rel= "stylesheet" /></Head>ID Selector: The identity number of the label, a page inside the body range of all tags can be written id and ID can not be repeated unique recognition in the CSS file set: #p1 {color: #0F9;} Then: function in the original file</Head><Body><PID= "P1">Rer</P><PID= "P2">Sdf</P><PID= "P3">Sdf</P></Body></HTML>Tag Selector: body{/* Set the color of Body label */background-color: #309} precedence follows the ID selector in the CSS comment:/* */in HTML comment<!-- -class selector: First set up in the CSS file. yangshi1{color: #C0F;
Then the link CSS file inside the file is then passed the name of the class= style<Body><PID= "P1">Rer</P><PID= "P2"class= "Yangshi1">Sdf</P><PID= "P3">Sdf</P></Body>
draw a div to make the div fill the entire screen: #apDiv1 {position:absolute; Width:100%;▲height:100%;▲background-color: #FF0; Z-index:1;} Position is the location: The default is Absolut, with respect to the body to fix the fixed fixed position, such as the navigation bar above the page when the two div superimposed together, Z-index: Starting from 1, the larger the number, the higher the number of layers, covering the z-index in two div: It's 1 o'clock in the body .<DivID= "ApDiv1"></Div><DivID= "ApDiv2"></Div>after writing the one in the above to do a navigation menu, Div Center position:absolute;margin:auto;div, margin set to Auto is, is adaptive, up and down the distance between the free, Depending on the position:absolute, it is at the beginning position, relative, is centered overflow:scroll;--if it exceeds the words to the DIV plus roller hidden--Hide<Divclass= "Yincang"onmouseover= "This.classname= ' Xianshi '"onmouseout= "This.classname= ' Yincang '">
20151008-20151101 Learning content Three: Css+div
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