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button,
a.btn, span.btn,
input[type=button], input[type=reset], input[type=submit] {
display: inline-flex;
align-items: center;
border: thin solid var(--darken-3);
background: var(--darken-1);
padding: var(--space-3);
color: inherit;
text-transform: uppercase;
text-decoration: none;
font-size: .875rem;
font-weight: 100;
cursor: pointer;
text-shadow: var(--extruded-light);
--focus-color: var(--darken-1);
--active-color: var(--darken-1);
&.btn-lg {
padding: .5rem 1rem;
font-size: 1.25rem;
line-height: 1.5;
border-radius: .3rem;
}
&.primary {
background-color: var(--primary);
color: var(--primary-txt);
text-shadow: var(--extruded-dark);
--focus-color: var(--lighten-1);
--active-color: var(--lighten-1);
}
// Icons
&.btn-icon-only {
display: flex;
align-items: center;
justify-content: center;
background: var(--lighten-1);
border-radius: 50%;
margin-left: 1ch;
padding: var(--space-2);
border-color: transparent;
.icon {
margin: var(--space-2);
--size: 1.5rem;
width: var(--size, 1.5rem);
height: var(--size, 1.5rem);
display: inline-block;
content: '';
background-repeat: no-repeat;
}
}
&:hover, &:focus {
background-image: linear-gradient(to right, var(--focus-color), var(--focus-color) 100%);
text-decoration: none;
}
.icon {
--size: 1rem;
width: var(--size, 1rem);
height: var(--size, 1rem);
}
}
form:invalid button,
button[aria-disabled],
a.btn[aria-disabled],
span.btn[aria-disabled] {
opacity: .5;
cursor: not-allowed;
filter: grayscale(100%);;
}
a.goto-top {
position: fixed;
display: flex;
bottom: 2em;
right: 2em;
width: 1em;
height: 1em;
justify-content: center;
border: .75em solid var(--primary);
align-items: center;
font-size: 200%;
background-color: var(--primary);
color: var(--primary-txt);
border-radius: 50%;
}
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