CSS
.btn1{
background-color:white;
padding:0.2em;
border:solid 1px #37c0f8;
border-radius:2px;
color:#37c0f8
}
.btn1:hover{
border-color:orange;
color:orange;
}
.btn1:focus{
border-color:#8a99b0;
color:#8a99b0;
outline: 1px solid #8a99b0;
}
HTML
<button class="btn1">TEST1</button>