CSS button click border remove code example

Example 1: remove button default border css

button:focus { outline: none; }

Example 2: diable focus button css

*:focus {
    outline: 0 !important;
}

Example 3: how to remove border on button click

.btnName{
	outline: none;
}

Example 4: button remove border if click

<style>
input[type="button"]
{
    width:120px;
    height:60px;
    margin-left:35px;
    display:block;
    background-color:gray;
    color:white;
    border: none;
    outline:none;
}
</style>

Example 5: remove button outlines

<button class="btn shadow-none">Bootstrap (4.1) button without shadow</button>