css table column width not set

Question

我试图将表列的宽度设置为最小值。标题行（th）被设置为white-space：nowrap以防止包装。现在所有列（包括td行）设置为th的宽度。我试图通过在html中设置较小的列来扩大其大小，如
<th style="width:200px;"> and <td style="width:200px;">，但它不起作用。在萤火虫中，在样式部分中，宽度设置是活动的

element.style { 
width:200px; 
} 

仍然，计算出的选项卡显示宽度小于200像素。请参阅下面的详细信息。

日 - 计算：

Text 
font-family verdana,arial,helvetica,sans-serif 
font-size 10px 
font-weight bold 
font-style normal 
color #333333 
text-transform none 
text-decoration none 
letter-spacing normal 
word-spacing 0 
line-height 17px 
text-align left 
vertical-align baseline 
direction ltr 
Background 
background-color transparent 
background-image none 
background-repeat repeat 
background-position 0 0 
background-attachment scroll 
opacity 1 
Box Model 
width 152px 
height 17px 
top auto 
right auto 
bottom auto 
left auto 
margin-top 0 
margin-right 0 
margin-bottom 0 
margin-left 0 
padding-top 0 
padding-right 0 
padding-bottom 0 
padding-left 0 
border-top-width 0 
border-right-width 0 
border-bottom-width 0 
border-left-width 0 
border-top-color #333333 
border-right-color #333333 
border-bottom-color #333333 
border-left-color #333333 
border-top-style none 
border-right-style none 
border-bottom-style none 
border-left-style none 
Layout 
position static 
display block 
visibility visible 
z-index auto 
overflow-x visible 
overflow-y visible 
white-space nowrap 
clip auto 
float none 
clear none 
-moz-box-sizing content-box 
Other 
cursor pointer 
list-style-image none 
list-style-position outside 
list-style-type disc 
marker-offset auto 

和TD --computed：

Text 
font-family verdana,arial,helvetica,sans-serif 
font-size 11px 
font-weight 400 
font-style normal 
color #222222 
text-transform none 
text-decoration none 
letter-spacing normal 
word-spacing 0 
line-height 12px 
text-align left 
vertical-align top 
direction ltr 
Background 
background-color transparent 
background-image none 
background-repeat repeat 
background-position 0 0 
background-attachment scroll 
opacity 1 
Box Model 
width 152px 
height 48px 
top auto 
right auto 
bottom auto 
left auto 
margin-top 0 
margin-right 0 
margin-bottom 0 
margin-left 0 
padding-top 5px 
padding-right 6px 
padding-bottom 5px 
padding-left 6px 
border-top-width 0 
border-right-width 1px 
border-bottom-width 0 
border-left-width 0 
border-top-color #222222 
border-right-color #222222 
border-bottom-color #222222 
border-left-color #DDDDDD 
border-top-style none 
border-right-style none 
border-bottom-style none 
border-left-style solid 
Layout 
position static 
display table-cell 
visibility visible 
z-index auto 
overflow-x visible 
overflow-y visible 
white-space normal 
clip auto 
float none 
clear none 
-moz-box-sizing content-box 
Other 
cursor auto 
list-style-image none 
list-style-position outside 
list-style-type disc 
marker-offset auto 

任何帮助，高度赞赏...谢谢

Answer 1

min-width:200px