border-top-style
语法
/* Keyword values */
border-top-style: none;
border-top-style: hidden;
border-top-style: dotted;
border-top-style: dashed;
border-top-style: solid;
border-top-style: double;
border-top-style: groove;
border-top-style: ridge;
border-top-style: inset;
border-top-style: outset;
/* Global values */
border-top-style: inherit;
border-top-style: initial;
border-top-style: unset;
选取以上可用关键字之一作为 border-style
的 border-top-style 属性的值.
形式化语法
<line-style>where
<line-style> = none | hidden | dotted | dashed | solid | double | groove | ridge | inset | outset
示例
HTML
<table>
<tr>
<td class="b1">none</td>
<td class="b2">hidden</td>
<td class="b3">dotted</td>
<td class="b4">dashed</td>
</tr>
<tr>
<td class="b5">solid</td>
<td class="b6">double</td>
<td class="b7">groove</td>
<td class="b8">ridge</td>
</tr>
<tr>
<td class="b9">inset</td>
<td class="b10">outset</td>
</tr>
</table>
CSS
/* Define look of the table */
table {
border-width: 2px;
background-color: #52E385;
}
tr, td {
padding: 3px;
}
/* border-top-style example classes */
.b1 {border-top-style: none;}
.b2 {border-top-style: hidden;}
.b3 {border-top-style: dotted;}
.b4 {border-top-style: dashed;}
.b5 {border-top-style: solid;}
.b6 {border-top-style: double;}
.b7 {border-top-style: groove;}
.b8 {border-top-style: ridge;}
.b9 {border-top-style: inset;}
.b10 {border-top-style: outset;}
输出结果
规则
规则 | 状态 | 备注 |
---|---|---|
CSS Backgrounds and Borders Module Level 3 border-top-style |
Candidate Recommendation | No significant change. |
CSS Level 2 (Revision 1) border-top-style |
Recommendation | Initial definition. |
初始值 | none |
---|---|
适用元素 | all elements. It also applies to ::first-letter . |
是否是继承属性 | 否 |
计算值 | as specified |
Animation type | discrete |
浏览器兼容性
BCD tables only load in the browser
相关词条
- The other style-related border properties:
border-left-style
,border-right-style
,border-bottom-style
, andborder-style
. - The other top-border-related properties:
border-top
,border-top-color
, andborder-top-width
.