how to remove select border in css code example

Example 1: css remove border input focus

textarea:focus, input:focus{
    outline: none;
}

Example 2: remove blue border on a input

input:focus {
    outline: none !important;
}

Example 3: remove border select css

select#xyz {
   border:0px;
   outline:0px;
}

Example 4: css remove outline

element{outline:none;}

Example 5: input outline focus

input:focus, textarea:focus {
    background-color: #FFFF66;
    border: 1px solid #F47E58;
}