p.soliddouble {border-style: solid double}
p.doublesolid {border-style: double solid}
p.groovedouble {border-style: groove double}
p.three {border-style: solid double groove}
<p class="soliddouble">Some text</p>
<p class="doublesolid">Some text</p>
<p class="groovedouble">Some text</p>
<p class="three">Some text</p>