.btn {
display: inline-block;
font-weight: 400;
text-align: center;
white-space: nowrap;
vertical-align: middle;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
border: 1px solid transparent;
padding: 0.375rem 0.75rem;
font-size: 1rem;
line-height: 1.5;
border-radius: 0.25rem;
transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}
.btn:hover, .btn:focus {
text-decoration: none;
}
.btn:focus, .btn.focus {
outline: 0;
box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}
.btn.disabled, .btn:disabled {
opacity: 0.65;
}
.btn:not(:disabled):not(.disabled) {
cursor: pointer;
}
.btn:not(:disabled):not(.disabled):active, .btn:not(:disabled):not(.disabled).active {
background-image: none;
}
.btn-primary {
color: #fff;
background-color: #007bff;
border-color: #007bff;
}
.btn-primary:hover {
color: #fff;
background-color: #0069d9;
border-color: #0062cc;
}
.btn-primary:focus, .btn-primary.focus {
box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.5);
}
.btn-primary.disabled, .btn-primary:disabled {
color: #fff;
background-color: #007bff;
border-color: #007bff;
}
.btn-primary:not(:disabled):not(.disabled):active, .btn-primary:not(:disabled):not(.disabled).active,
.show > .btn-primary.dropdown-toggle {
color: #fff;
background-color: #0062cc;
border-color: #005cbf;
}
.btn-primary:not(:disabled):not(.disabled):active:focus, .btn-primary:not(:disabled):not(.disabled).active:focus,
.show > .btn-primary.dropdown-toggle:focus {
box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.5);
}
<button class='btn btn-primary'>here</button>