<p>あのイーハトーヴォのすきとおった風、夏でも底に<span class="te1">冷たさ</span>をもつ青いそら、うつくしい<span class="te1">森で飾られた</span>モリーオ市、郊外のぎらぎらひかる草の波。</p>
body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "BIZ UDPGothic", Meiryo, sans-serif;
  font-weight: 400;
  line-height: 1.9;
  margin: 0;
  padding: 0;
  color: #333;
}
p{
  font-size: 1rem;
  width: 60%;
  padding: 1rem 3rem;
}
.te1{
  background: top left / 1em .5em repeat-x radial-gradient(circle, blue .15em, rgba(0,0,0,0) .15em) ;
  padding-top: .55em;
}

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