
批改狀態(tài):合格
老師批語:這些都是最基礎(chǔ)的知識點, 可能以后的班級不再教學(xué)了,你們是賺到了
列間隙的兩種設(shè)置方案
兩列或者是多列加上邊距后累計寬度如果超過父容器寬度會導(dǎo)致?lián)Q行,從而使得布局不符合預(yù)期。列間隙設(shè)置方法包括計算邊距設(shè)置和通過修改box-sizing屬性設(shè)置。兩種方法都可以實現(xiàn)設(shè)置邊距的目標。計算邊距可以是百分比也可以是具體em值,因為css的calc(x - y)
可以計算屬性值,注意加減號兩側(cè)必須加空格否則無效。計算邊距可以用margin
或者是padding
.box-sizing
設(shè)置省去了加減邊距,但是邊距只能夠是padding
,因為margin
不算在width
中。
下面分別演示兩種設(shè)置方法。
html代碼:
<header>PHP中文網(wǎng)</header>
<div class="container">
<aside class="left">菜單選項</aside>
<main>欄目分類</main>
<aside class="right">熱門課程</aside>
</div>
<footer><p>底部</p></footer>
百分比設(shè)置列間隙css代碼
/**
列間隙設(shè)置不當會導(dǎo)致元素分行顯示,破壞頁面結(jié)構(gòu).
通過margin=100%-left_element.width-right_element.width實現(xiàn).
width可以在css中用總體百分比或者是用calc(element.width - margin)計算.
calc中減號兩側(cè)必須有空格,否則無效.
**/
* {
margin: 0;
padding: 0;
/* outline: 1px dashed lightcoral; */
/* w3c標準默認盒模型是content-box,無需顯式聲明,width不包括border和padding */
box-sizing: content-box;
}
/* css中盡可能避免用標簽選擇器,以實現(xiàn)樣式復(fù)用,但是也不是不可以用 */
header {
width: 100%;
height: 5em;
background-color: lightblue;
text-align: center;
/* border-box的width和height包括border和padding,在設(shè)計垂直居中的時候可以直接根據(jù)元素寬高設(shè)置 */
box-sizing: border-box;
padding-top: 1.5em;
}
.container {
/* 父元素只設(shè)置了min-height,沒有設(shè)置height,所以百分比沒有效果 */
min-height: 80vh;
outline: 1px dashed red;
/* 子元素的height過大會導(dǎo)致溢出。而overflow(overflow-x,overflow-y)可以設(shè)置溢出的處理方式,包括visible,hidden,auto(溢出時自動出現(xiàn)滾動條),scroll多種 */
overflow: auto;
/* 垂直居中設(shè)置方法之一:父元素position設(shè)置為非static,子元素設(shè)置絕對定位可以實現(xiàn)垂直居中,但是float后的子元素不可以? */
/* position: relative; */
}
.container > .left {
width: 19%;
height: 100%;
height: 50%;
margin-right: 1%;
/* aside和main都是html5語義化標簽,默認塊元素,可以用float改成行內(nèi)塊元素,或者是用flex設(shè)置為行內(nèi)塊元素 */
float: left;
background-color: lightgoldenrodyellow;
/* text-align文字水平居中 */
text-align: center;
}
.container > main {
width: 60%;
/* height設(shè)置過大,可以通過父元素的overflow予以處理,包括顯示,隱藏,滾動條,自動各種選項 */
height: 50em;
/* float:left把塊元素聲明為行內(nèi)塊元素,可以在一行并排顯示 */
float: left;
background-color: lightcoral;
text-align: center;
/* float后不能夠通過絕對定位來實現(xiàn)垂直居中?,但是已知寬高,實現(xiàn)垂直居中是很簡單的 */
/* position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto; */
/* 用border-box確定上下padding,實現(xiàn)垂直居中 */
box-sizing: border-box;
padding-top: calc((50em - 1em) / 2);
}
.container > .right {
width: calc(19% - 1em);
height: 70vh;
/* em設(shè)置margin可以使得在不同大小的窗口中margin保持一致,隨元素字號大小而改變 */
margin-left: 1em;
float: left;
background-color: lightgoldenrodyellow;
display: flex;
/* flex下text-align不生效?我?guī)状味疾怀晒?。我看到很多例子是可以的。目前還不了解具體原因,因為我的學(xué)習(xí)還沒有到flex,雖然講課已經(jīng)過了。用align-items加justify-content可以 */
/* text-align: center; */
align-items: center;
justify-content: center;
}
footer {
position: fixed;
width: 100%;
height: calc(20vh - 5em);
background-color: #0752b5;
color: white;
}
footer > p {
/* 絕對定位實現(xiàn)垂直居中,父元素body的position不可以是static,但是無法實現(xiàn)p里面的文字居中 */
width: 50px;
height: 50px;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
margin: auto;
}
/* line-height等于父元素高度,加上vertical-align:center,可以實現(xiàn)垂直居中 */
/* text-align:center實現(xiàn)水平居中 */
footer > p {
line-height: 50px;
vertical-align: middle;
text-align: center;
}
效果圖:
box-sizing設(shè)置列間隙
/* content-box(W3C盒子)的width=內(nèi)容寬度,不論是padding,margin,還是border都不在width里面,在設(shè)置間隙的時候不能夠控制布局 */
/* border-box又稱怪異盒子/IE盒子,width=內(nèi)容寬度+padding+border,這樣可以利用padding設(shè)置列間隙,布局不會受影響 */
/* margin在任何情況下都不計入盒子高度和寬度 */
:root {
box-sizing: border-box;
}
* {
margin: 0;
padding: 0;
/* 把所有元素設(shè)為border-box,padding和border都在width內(nèi),在利用padding設(shè)置列間隙 */
box-sizing: inherit;
}
header,
footer {
/* line-height和height設(shè)置一樣,再通過 vertical-align 可以設(shè)置垂直居中,text-align 設(shè)置水平居中 */
width: 100%;
height: 10vh;
background-color: lightblue;
line-height: 10vh;
text-align: center;
vertical-align: middle;
}
.container {
width: 100%;
height: 80vh;
outline: 1px dashed red;
}
.container > .left {
float: left;
width: 20%;
height: 100%;
background-color: blanchedalmond;
padding-right: 1%;
/* padding默認填充內(nèi)容的background,通過background-clip:content-box可以設(shè)置無背景 */
background-clip: content-box;
border: 1px solid seagreen;
}
.container > main {
float: left;
width: 60%;
height: 100%;
background-color: burlywood;
border: 1px blue solid;
}
.container > .right {
float: left;
width: 20%;
height: 100%;
padding-left: 1em;
background-clip: content-box;
background-color: cadetblue;
border: 1px black solid;
}
效果圖:
等高列的表格實現(xiàn)
等高列可以用flex和表格實現(xiàn),還可以用grid實現(xiàn),還可以用min-height實現(xiàn)。
因為時間關(guān)系,我拉下的課程和作業(yè)比較多,所以本來想做一個比較完整的頁面,比較一下各大門戶(其實其他論壇也類似)的不同風(fēng)格和國外主流門戶的風(fēng)格,但是最后放棄。只能夠簡單做一個效果。期待后續(xù)跟上課程。
雖然只是簡單頁面,做起來也很吃力。時間太多了。所以說一個項目不能夠奢求太大而全,而且一個項目需要和小伙伴們合作才可以。
<header>
<h1>四大門戶熱點新聞</h1>
</header>
<!-- wrapper用于包裹表格實現(xiàn)負margin -->
<div class="wrapper">
<div class="container">
<div class="locality">
<h2>國內(nèi)四大門戶</h2>
<p>
<b style="color: red">NOTE:</b><br />
<span
>內(nèi)容和鏈接全部來自于新浪首頁新聞,并不是真實各大網(wǎng)站(因為時間有限,計劃嚴重縮水),特此聲明</span
>
</p>
</div>
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</div>
</div>
<div class="score">評分<br />250</div>
</div>
</div>
:root {
font-size: 0.625em;
box-sizing: border-box;
}
* {
margin: 0;
padding: 0;
box-sizing: inherit;
}
body {
font-size: 1.6rem;
}
header {
height: 5em;
text-align: center;
line-height: 5em;
background-color: khaki;
font-family: "宋體";
font-size: 1.6rem;
color: lightcoral;
}
/* 以下實現(xiàn)國內(nèi)四大門戶內(nèi)容展示的表格布局 */
.container {
display: table;
width: 100%;
/* 第一個是水平間距,第二個是垂直間距 */
border-spacing: 2em 0;
}
.container > .locality,
.container > .website-container,
.container > .score {
display: table-cell;
}
.container > .locality {
width: 10%;
padding: 1em;
text-align: center;
vertical-align: middle;
}
.container > .website-container {
width: 20%;
}
.container > .score {
width: 10%;
text-align: center;
vertical-align: middle;
color: blue;
padding: 1em;
}
/* 設(shè)置負外邊距消除外部 */
.wrapper {
margin: 0 -2em;
}
/* 以下實現(xiàn)門戶網(wǎng)站內(nèi)容展示css */
.container > .website-container > .brand {
width: 100%;
height: 6em;
}
.container > .website-container > .brand > a {
display: block;
position: relative;
width: 15em;
height: 5em;
}
.container > .website-container > .brand > .sina {
background: url(http://i2.sinaimg.cn/dy/deco/2013/0329/logo/LOGO_1x.png)
no-repeat center center;
/* 背景圖按寬高比例縮放 */
background-size: contain;
}
.container > .website-container > .brand > .sohu {
background: url(data:image/png;base64,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)
no-repeat center center;
/* 背景圖按寬高比例縮放 */
/* background-size: contain; */
}
/* 精靈圖,我還不會處理,打字代替 */
.container > .website-container > .brand > .netease::after {
content: "網(wǎng)易";
color: blue;
font-size: 3em;
font-style: italic;
font-weight: bold;
font-family: "楷體";
letter-spacing: 0.3em;
text-align: center;
vertical-align: middle;
position: absolute;
top: 0.5em;
left: 1em;
background-color: lightblue;
}
.container > .website-container > .brand > .tencent {
background: url(https://mat1.gtimg.com/pingjs/ext2020/qqindex2018/dist/img/qq_logo_2x.png)
no-repeat center center;
/* 背景圖按寬高比例縮放 */
background-size: 80%;
}
.container > .website-container > .website-hots {
width: 100%;
padding: 1em;
border-radius: 0.5em;
border: 2px solid coral;
}
/* a標簽四個偽類::link,:visited,:hover,:active,次序不可以顛倒,否則效果有可能不展示(相同的優(yōu)先級) */
/* 但是只有:link和:visit兩者不需要固定順序 */
/* :link和a的樣式可能沖突,沖突以代碼后者為準 */
.wrapper .website-hots > a:link {
display: block;
font-size: 1.6rem;
text-decoration: none;
color: #333;
}
.wrapper .website-hots > a:visited {
color: #999;
}
.wrapper .website-hots > a:hover {
color: red;
}
.wrapper .website-hots > a:active {
color: coral;
}
效果圖:
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