the content element is position: absolute such that it takes up the full width and height of the .row parent element (set the offset properties to zero). The rows now have a height that scales with the width of the window. This approach has some flexibility, and though not perfec...
body { margin: 0; } .title-container { display: -ms-flex; display: -webkit-flex; display: flex; } section { padding: 60px 0; overflow: hidden; } #bloc-video { padding: 0px 0px 0px 0px; } #myVideo { min-width: 100%; min-height: 100%; } .content { position: absolute; b...
width: 30px; height: 30px; background: #ccc; 原图 理解一:通过此图可以知道inner盒子在position为默认的是static时,它的包含块为最近的祖先元素的content-box,所以他的起始位置位于从wrap的content-box的左上角 理解二:当把inner的position值设为absolute,并设top:0,left:0时,同时把wrap的值设为relative时,...
I'm the child element.parent { margin: 50px auto 0 auto; width: 400px; height: 120px; } .child { margin: 50px 0; } 请注意,子元素固定在其父元素的顶部。那是因为它的边距折叠了。根据W3C,以下是针对该问题的一些解决方案: 在父元素上添加border 将子元素显示更改为inline-block 一个更直接的...
.parent{margin:50px auto0auto;width:400px;height:120px;}.child{margin:50px0;} 请注意,子元素粘在其父元素的顶部, 那是因为它的边距被折叠了。 根据 W3C,以下是针对该问题的一些解决方案: 给父元素添加边框 将子元素显示更改为 inline-block
inherit - The height and width will be inherited from its parent valueSetting the max-width and max-height:The max-width and max-height properties are used to set the maximum width and height of an element.The properties can be specified into px, cm or percent.Using...
width:1080px;/* 设置宽度为1080px */ height:522px;/* 设置高度为522px */ margin-top:10px; margin-right: auto;/* 左右使用auto值,可以使元素水平居中 */ margin-left: auto;/* 使用auto值 */ } .parent{ margin-left:20px;/* 设置父元素的左外边距为 20px */ ...
height: 100px; } Of course, if you want to set a container to fill its parent container fully, you would set both the width and height to 100%. Using borders and dimensions is a part of most web design projects. You'll need to design each of your elements to fit the page properly...
Bootstrap 将全局 font-size 设置为 14px,line-height 设置为 1.428。这些属性直接赋予 元素和所有段落元素。另外, (段落)元素还被设置了等于 1/2 行高(即 10px)的底部外边距(margin)。 Nullam quis risus eget urna mollis ornare vel eu leo. Cum sociis natoque penatibus et magnis dis parturient mo...
line-height 与 height相等 .parent{height:100px;line-height:100px; } 子元素需要是行内元素 .parent{height:100px; }.utils-vertical-center::after{display: inline-block;content:"";height:100%;vertical-align: middle } flex border-box可以合并border和padding将其长度加入width中。