Jquery CCS在聚焦/模糊时改变前向颜色

我的代码：

<asp:TextBox ID="TOTAL" 
onfocus="if (this.value == this.defaultValue) { this.value = '';  this.ForeColor = black; }"
onblur="if (this.value == '')  this.value = this.defaultValue; this.css('color', 'LightGray');" 
style="text-align: center;" runat="server" Height="16px" Width="60px" ForeColor="LightGray">8</asp:TextBox>

或

或

不起作用，我不想使用jQ，比如：

$('input').focus(function(){
 if($(this).val() == this.defaultValue){$(this).val('');$(this).css("color","green");}
}).blur(function(){
 if($(this).val() == ''){$(this).val(this.defaultValue);$(this).css("color","grey");}
});

---

尝试使用

此.style.color

---

不确定它是否能跨浏览器/跨（旧）版本工作，这通常是jQuery为您解决的问题，但您显然反对这一点…

@Peter B谢谢您，正在工作；）

解决方案：

<asp:TextBox ID="TOTAL" onfocus="if (this.value == this.defaultValue) { this.value = ''; this.style.color = 'black'; }"
         onblur="if (this.value == '' || this.value == this.defaultValue) { this.value = this.defaultValue; this.style.color = 'LightGray'; }" style="text-align: center;" runat="server" Height="16px" Width="60px" ForeColor="LightGray">8</asp:TextBox>

8

this.ForeColor = 'black'

$('input').focus(function(){
 if($(this).val() == this.defaultValue){$(this).val('');$(this).css("color","green");}
}).blur(function(){
 if($(this).val() == ''){$(this).val(this.defaultValue);$(this).css("color","grey");}
});

.classname{color:grey}
.classname:focus, .clasname:active { color:green}

<asp:TextBox ID="TOTAL" onfocus="if (this.value == this.defaultValue) { this.value = ''; this.style.color = 'black'; }"
         onblur="if (this.value == '' || this.value == this.defaultValue) { this.value = this.defaultValue; this.style.color = 'LightGray'; }" style="text-align: center;" runat="server" Height="16px" Width="60px" ForeColor="LightGray">8</asp:TextBox>