我意识到 IE8 对 iFRAMES 来说是个麻烦事。“Frameborder”在 HTML5 中已被弃用,因此虽然它是 IE8 最简单的选择,但这不是一个长期的解决方案。
通过将 iFRAME 放置在容器内,我成功地隐藏了边框和滚动条。iFRAME 容器本身放置在一个 div 内,用于在网页上进行整体定位。iFRAME 本身是绝对定位的,并且负边距应用于顶部和左侧,以隐藏顶部和左侧边框。绝对定位的 iFRAME 的宽度和高度应编码为 100% 以上,因此它超过了父尺寸,以至于右侧和底部边框不可见(滚动条也不可见)。此技术还使 iFrame 具有响应性,因为 iFRAME 容器使用百分比以及包含容器的 div。当然 iFRAME 父 div 必须设置为溢出:隐藏。
这是一个示例代码:
/*THE PARENT DIV FOR THE iFRAME CONTAINER*/
.calcontainer
{
width:100%; /*adjust iFrame shrinking here - if floating use percentage until no white space around image.*/
max-width:200px;
margin:auto;
}
/*THE RELATIVE POSITIONED CONTAINER FOR THE iFRAME*/
.calinside /*container for iFRAME - contents will size huge if the container is not contained and sized*/
{
position:relative; /*causes this to be the parent for the absolute iFRAME*/
padding-bottom: 100%; /* This is the aspect ratio width to height ratio*/
height: 0;
overflow:hidden; /*hides the parts of the iFRAME that overflow due to negative margins and over 100% sizing*/
}
/*THE ABSOLUTE POSITIONED iFRAME contents WITH NEGATIVE MARGINS AND OVER 100% SIZE IS CODED HERE. SEE THE NORMAL SETTINGS VERSUS THE IE8 SETTINGS AS MARKED. A SEPARATE CSS FILE IS NEEDED FOR IE8 WITH A CONDITIONAL STATEMENT IN THE HEAD OF YOUR HTML DOCUMENT/WEB PAGE*/
.calinside iframe
{
position: absolute;
top: 0;
left: 0;
width: 100% !important;/*must expand to hide white space to the right and below. Hidden overflow by parent above*/
height: 103% !important; /*must expand to hide white space to the right and below. Hidden overflow by parent above*/
/*IE8*/top: -2%;
/*IE8*/left: -2%;
/*IE8*/width: 114% !important;/*For IE8 hides right border and scroll bar area that is white*/
/*IE8*/height: 105% !important; /*hide white space and border below. Hidden overflow by parent above*/
}