HTML DOM Style borderTopWidth property
Style Objects Definition and Usage
borderTopWidth property sets or returns the element on the width of the border.
grammar
Setting borderTopWidth properties:
Object.style.borderTopWidth="thin|medium|thick|length|inherit"
Back borderTopWidth properties:
Object.style.borderTopWidth
| 值 | 描述 |
|---|---|
| thin | 定义细的边框。 |
| medium | 默认。定义中等的边框。 |
| thick | 定义粗的边框。 |
| length | 使用 px、cm 等单位定义边框的宽度。 |
| inherit | 上边框的宽度从父元素继承。 |
Browser Support
All major browsers support borderTopWidth property.
Note: IE7 and earlier versions do not support the "inherit" value.IE8 only provides! DOCTYPE supported "inherit". IE9 support "inherit".
Examples
Examples
Change the border width:
<! DOCTYPE html>
<Html>
<Head>
<Meta charset = "utf-8">
<Title> This tutorial (w3big.com) </ title>
<Style type = "text / css">
# Ex1 {
border: 1px solid # FF0000;
}
</ Style>
<Script>
function displayResult () {
document.getElementById ( "ex1") style.borderTopWidth = "thick".;
}
</ Script>
</ Head>
<Body>
<Div id = "ex1"> This is some text. </ Div>
<br>
<Button type = "button" onclick = "displayResult ()"> Modify the border width </ button>
</ Body>
</ Html>
<Html>
<Head>
<Meta charset = "utf-8">
<Title> This tutorial (w3big.com) </ title>
<Style type = "text / css">
# Ex1 {
border: 1px solid # FF0000;
}
</ Style>
<Script>
function displayResult () {
document.getElementById ( "ex1") style.borderTopWidth = "thick".;
}
</ Script>
</ Head>
<Body>
<Div id = "ex1"> This is some text. </ Div>
<br>
<Button type = "button" onclick = "displayResult ()"> Modify the border width </ button>
</ Body>
</ Html>
try it"
Style Objects