.allsides-7_1 {
background:
linear-gradient(currentColor 0 0) 0 100%,
linear-gradient(currentColor 0 0) 0 100%,
linear-gradient(currentColor 0 0) 100% 100%,
linear-gradient(currentColor 0 0) 100% 100%;
border: 1px solid #343647;
background-size: var(--p, 0%) 3px, 3px var(--d, 0);
background-repeat: no-repeat;
transition: 0.5s;
}
.allsides-7_1:hover {
color: #4cc9f0;
--d: 100%;
--p: 0%
}