& ltdiv class="form " >& ltinput id = " code " class = " ipxcode " name = " code " placeholder = " sample blue border " type = " text " & gt；& ltinput type = " button " class = " send " value = " send " > & lt；/div & gt；
2.用瀏覽器查看時，點擊輸入會發現藍色邊框。
3.直接將style = "outline: none添加到輸入中。
4.直接在頂部編輯器中修改css厚度樣式。
& ltstyle type="text/css " >？輸入{大綱:無；} & lt/style & gt；
5.直接用input:focus { outline:none；}控制對焦時，不會出現藍色邊框。確認保存即可。
擴展數據:
壹個簡單的HTML表單，有兩個文本輸入框和壹個提交按鈕:
& ltform action = " form _ action . ASP " method = " get " & gt；名字:& ltinput type = " text " name = " fname "/& gt；姓氏:& ltinput type = " text " name = " lname "/& gt；& ltinput type = " Submit " value = " Submit "/& gt；& lt/form & gt；
以上是HTML源代碼，後面可以修改。