<h3 class="hover one">Hover Me</h3>
<h3 class="hover two">Hover Me</h3>
<h3 class="hover three">Hover Me</h3>
<h3 class="hover four">Hover Me</h3>
<h3 class="hover five">Hover Me</h3>
<style>
.hover {
--c: #1095c1; /* the color */
--s: .15em;
line-height:1.1em;
padding-bottom: calc(2.1*var(--s));
background:
conic-gradient(from 135deg at top,var(--c) 90deg,#0000 0)
left 0 bottom var(--s)/calc(2*var(--s)) var(--s) repeat-x,
conic-gradient(from -45deg at bottom,var(--c) 90deg,#0000 0)
left var(--s) bottom 0/