.container-1 a {
 background: linear-gradient(to bottom, #337AB7 0%, #337AB7 100%);
 background-position: 0 100%;
 background-repeat: repeat-x;
 background-size: 1px 1px;
 color: #000;
 text-decoration: none;
 padding-bottom: 2px;
}
 
.container-1 a:hover {
 background-image: url("data:image/svg+xml;charset=utf8,%3Csvg id='squiggle-link' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' xmlns:ev='http://www.w3.org/2001/xml-events' viewBox='0 0 20 4'%3E%3Cstyle type='text/css'%3E.squiggle{animation:shift .3s linear infinite;}@keyframes shift {from {transform:translateX(0);}to {transform:translateX(-20px);}}%3C/style%3E%3Cpath fill='none' stroke='%23337AB7' stroke-width='1' class='squiggle' d='M0,3.5 c 5,0,5,-2,10,-2 s 5,2,10,2 c 5,0,5,-2,10,-2 s 5,2,10,2'/%3E%3C/svg%3E");
 background-position: 0 100%;
 background-size: auto 4px;
 background-repeat: repeat-x;
 text-decoration: none;
}