为何WordPress中链接的下划线去不掉？

在我的主页的侧边栏上，我挂了一些自定义HTML。
但是每当碰到链接的时候，这个链接的下划线怎么也去不掉。现在我整个侧边栏的代码如下：

<code><!--小型样式表-->
<style>
.selfshot {
    border-radius: 50%;
    max-width: 200px;
    max-height: 200px;
    margin-bottom: 20px;
}
.smalltxt {
        font-size:12px;
}
a {
text-decoration: none !important;
}
</style>
<!--各个div的显示与隐藏-->
<script>
function wxstatuschg() {
document.getElementById("wxqrcode").style.display == "none" ? document.getElementById("wxqrcode").style.display = "block" : document.getElementById("wxqrcode").style.display = "none";
}

function emailstatuschg() {
document.getElementById("email").style.display == "none" ? document.getElementById("email").style.display = "block" : document.getElementById("email").style.display = "none";
}
</script>
<!--头像开始-->
<div align="center">
<img src="http://www.sparker.xyz/assets/images/qzh.jpg" alt="头像" class="selfshot" align="center">
<br><strong>秦泽浩</strong>
</div>
<div class="smalltxt" align="center">15级吉林大学唐敖庆理科实验班
<br>
（计算机科学方向）<br>
不瞎想，有耐心，喜欢冷静地分析
<br>
喜欢用coding的思维析构整个世界</div>
<div align="center">
<!--Email图标-->
<a href="javascript:;" onclick="emailstatuschg();">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewbox="0 0 22 16" width="24" height="24">
<g><path style="fill-rule:evenodd;clip-rule:evenodd;" d="M22,0H0v2l11,9l11-9V0z M21,1.36L11,9.646L1,1.36V1h20V1.36z" fill="rgba( 190, 190, 190, 0.7)"></path><polygon style="fill-rule:evenodd;clip-rule:evenodd;" points="22,16 15.49,9 14.594,9.814 19.427,14.922 2.461,14.922 7.396,9.814 6.5,9 0,16 " fill="rgba( 190, 190, 190, 0.7)"></polygon><polygon style="fill-rule:evenodd;clip-rule:evenodd;" points="22,14.396 22,3.451 21,4.149 21,13.488     " fill="rgba( 190, 190, 190, 0.7)"></polygon><polygon style="fill-rule:evenodd;clip-rule:evenodd;" points="0,14.249 1,13.266 1,4.08 0,3.378     " fill="rgba( 190, 190, 190, 0.7)"></polygon>
</g></svg></a>
<!--Email图标结束-->
</div>
<!--email的隐藏div-->
<div id="email" style="display:none" align="center">
<email>cn.a.q@ieee.org</email>
<br>
<email>qzhsjz@gmail.com</email>
<br>
<email>qinzehao@sparker.xyz</email>
<br>
<email>qinzh0115@mails.jlu.edu.cn</email>
</div>
<!--联系方式的p-->
<p align="center">
<!--QQ的图标开始-->
<a target="blank" href="tencent://message/?uin=916327225&Site=%E6%97%B6%E4%B9%8B%E7%B9%81%E8%8A%B1&Menu=yes">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewbox="0, 0, 300, 300"><path d="M134.576 26.089c-35.5 7.9-60.3 37.1-63.2 74.1-.3 4.6-1 8.3-1.5 8.3-1.5 0-4.8 6.4-4.8 9.3 0 1.5-.7 3.9-1.6 5.2-1.2 1.9-1.5 4.2-1.2 9.7l.4 7.3-6.3 8.3c-15.4 20.2-21.4 41.7-16.8 59.7 2.1 7.9 3.4 9.2 7.5 7.5 3.2-1.3 11.5-9.9 13.3-13.8 1.1-2.4 2.7-3 2.7-1 0 2.4 6.1 14.2 10.6 20.6 2.5 3.5 4.4 6.5 4.2 6.6-.1.2-2.1 1.3-4.3 2.4-8.2 4.2-11.8 10.3-11.9 20.7-.1 3.6.5 5.9 1.9 7.9 1.1 1.6 2.5 3.7 3.1 4.7 3.5 6 9.9 9 23.3 11 10 1.4 16.9.8 36.6-3.1 19.9-3.9 28.2-3.9 48.9.2 29.3 5.8 47.1 3.9 56.5-6 7-7.6 9.1-13.8 6.7-19.7-.8-1.8-1.2-3.6-.9-3.8.2-.3-.3-1.9-1.1-3.6-1.9-3.5-6.7-7.4-11.9-9.6l-3.6-1.5 5.3-7.8c2.9-4.3 6.5-11 8.1-15l2.8-7.2 3.7 5.7c3.9 6 9.3 11.6 12.2 12.6 4.2 1.5 7.7-7.2 8.5-20.8.4-7.2.1-10.8-1.6-17.5-2.4-9.9-10.2-26-16.4-34.3-4.3-5.7-4.4-5.7-3.4-11 1.2-6.8-.4-14.9-4.3-21.1-2.4-3.7-3.2-6.5-4-13.4-3.7-32.6-26.6-60-58.5-70.2-9.3-3-28.8-3.7-39-1.4zm43.1 36c4.4 2.9 7.6 9.8 8.2 17.3 1.6 23.2-16.4 34.1-26 15.7-3.3-6.1-3.2-19.3.1-25.9 3.8-7.9 11.7-11 17.7-7.1zm-42 1c4.5 3 7.7 9.8 8.2 17.8.5 9-1 14.7-5.4 19.5-4 4.5-8.1 5.7-12.7 3.7-7.2-3.1-11-10.4-11-21.6 0-8.4 2.4-14.7 7.1-18.7 3.3-2.8 10.1-3.1 13.8-.7zm43.2 48.3c13 3.3 27.2 10.6 27.2 14.1 0 1.9-8.8 7.5-14.2 9-3.2 1-3.1.7 1-4.8 3.6-4.8 2.1-4.9-4-.3-22.2 16.7-49 17.1-70.6.9-3-2.2-5.6-3.8-5.8-3.5-.3.2.5 2.1 1.7 4.1 1.2 2 1.9 3.9 1.6 4.2-.7.7-9-2.9-12.7-5.6-1.7-1.2-3-3-3-4.1 0-4.2 18.2-12.4 33.9-15.4 10.8-2.1 33.9-1.3 44.9 1.4zm-64.6 35c8.3 2.9 23 5.1 33.5 5.1 6.3 0 9.3.4 9.3 1.2 0 1.5-19.7.4-30.6-1.7-8.6-1.6-17.4-4.3-18.8-5.6-1.6-1.4.5-1.1 6.6 1zm57.3 5.1c-1.6.4-5.5.7-8.5.7h-5.5l6-.7c3.3-.4 7.1-.7 8.5-.7 2.2-.1 2.1 0-.5.7zm-80.8 14.8c.8.5.6 4-.8 13.7-2.4 16.1-1.9 22.3 2.3 27 3.8 4.4 10.4 6.8 18.7 6.9 13.8.2 15.1-1.6 15.1-21v-12.7l8.3.9c30.2 3.2 59.3-2.9 80.6-17.1 3-2 5.8-3.2 6.2-2.8 3.7 3.7 5.1 28 2.4 38.8-8 30.9-35.5 52.7-68.5 54.2-23.2 1.1-42.2-6-58-21.7-12-12-18.9-26.2-20.5-42.6-.7-7.7.8-20.7 3.1-26.2l1.4-3.3 4.2 2.6c2.4 1.4 4.8 2.9 5.5 3.3zm-8.6 66.8c.8.9 3 2.7 4.9 3.9 1.9 1.3 5.3 4 7.6 6.1 2.2 2.2 7.3 6.5 11.2 9.7 5.2 4.2 7.2 6.5 7.2 8.1 0 3-2 3.6-13.8 3.6-16.5 0-29.2-4.6-32.4-11.6-1.1-2.3-.9-3.3 1.4-7.5 2.4-4.6 2.5-4.9.7-5.4-2.5-.8-1.4-2.7 3.1-6 4.1-2.8 8.2-3.2 10.1-.9zm144.7-.2c5.6 2.9 7.8 7.6 3.5 7.6-1.4 0-1.4.3.2 2 1 1.1 2 4.1 2.3 6.8.4 4.5.2 5-3.2 8-5.6 4.9-13 6.7-27.4 6.5-9.2 0-12.8-.4-13.8-1.5-2.1-2 .3-4.9 7.4-8.9 8.9-5.1 12.4-7.8 13.6-10.1.6-1.2 2.5-2.5 4.2-3 2-.5 4.1-2.2 5.9-4.8 3.1-4.5 3.5-4.6 7.3-2.6zm-62.1-156.6c-2.4 2.6-3.9 7.3-3.2 10 .8 3.3 2.7 2.3 4-2.4 1.3-4.9 5.1-6.1 6-2l1 5.2c1 4.5 3 2.1 3-3.6-.1-4.3-.5-5.6-2.4-7.1-2.9-2.4-6.3-2.4-8.4-.1zm-34.1-.9c-3.9 4.3-3.6 12.6.6 15.6 3.1 2.1 4.5 1.9 7.3-1 1.9-1.8 2.5-3.5 2.5-7 0-7.5-6.3-12.1-10.4-7.6zm6.9 6.2c0 2.8-2.9 3.8-3.9 1.3-.7-1.9 1.1-4.7 2.8-4.1.6.2 1.1 1.4 1.1 2.8z" fill="rgba( 190, 190, 190, 0.7)"></path></svg></a>
<!--QQ的图标结束-->
 
<!--微信的图标开始-->
<a href="javascript:;" onclick="wxstatuschg();">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="24" height="24" viewbox="0, 0, 400, 400"><g id="Layer 1"><path d="M120.601,46.576 C9.241,66.466 -27.879,192.281 60.7,249.869 C65.557,252.991 65.557,252.645 58.271,274.385 L52.027,293.002 L74.461,280.976 L96.895,268.95 L108.806,271.841 C121.294,274.963 137.253,277.16 147.891,277.16 L154.252,277.16 L152.054,268.718 C134.593,204.423 194.956,140.706 273.475,140.706 L284.114,140.706 L281.917,133.074 C264.686,72.826 191.95,33.856 120.601,46.576 z M110.887,102.892 C122.682,110.872 123.376,128.102 112.043,135.503 C93.657,147.529 72.148,126.367 84.521,108.327 C89.956,100.233 103.024,97.573 110.887,102.892 z M205.711,102.892 C225.138,115.96 210.568,146.141 188.827,137.815 C173.101,131.802 171.25,110.178 185.936,102.43 C191.718,99.308 200.738,99.539 205.711,102.892 z M248.613,150.536 C193.453,160.596 155.177,202.457 157.374,250.563 C160.265,314.974 235.777,359.379 308.282,339.489 L316.839,337.176 L334.879,346.89 C344.824,352.325 353.15,356.257 353.381,355.794 C353.613,355.216 351.647,348.278 349.103,340.299 C343.321,322.49 343.205,323.762 350.953,318.212 C438.144,255.651 361.592,130.068 248.613,150.536 z M246.416,202.457 C251.272,205.695 253.816,213.79 251.735,219.688 C247.341,232.292 228.492,233.217 223.403,221.075 C217.621,207.083 233.58,194.131 246.416,202.457 z M323.662,203.845 C331.294,211.13 330.022,223.504 321.118,228.129 C307.473,235.067 293.134,221.191 300.188,207.892 C304.813,199.335 316.724,197.254 323.662,203.845 z M220.43,328.772" fill="rgba( 190, 190, 190, 0.7)"></path></g><defs></defs></svg></a>
<!--微信的图标结束-->
 
<!--微博的图标开始-->
<a href="http://www.weibo.com/201272501">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewbox="0, 0, 300, 300"><path d="M196.802 39.964c-8.656 3.787-10.64 12.803-4.328 19.115 3.066 3.066 5.951 3.607 18.574 3.607 17.673 0 29.575 4.688 38.592 15.148 11 12.443 12.263 16.23 12.263 38.952 0 20.197 0 20.558 4.688 23.263 10.82 6.131 18.034-1.443 20.558-21.64 3.246-26.329-12.443-56.986-36.066-71.052-15.509-9.016-42.018-12.623-54.281-7.393zm-88.724 33.542c-20.198 7.213-39.674 21.099-60.592 43.46-49.592 52.658-46.346 102.791 8.295 129.48 56.805 27.771 133.267 18.574 174.924-21.099 31.198-29.575 27.411-66.724-8.115-79.347-6.312-2.164-8.296-3.787-7.394-5.771 3.246-7.934 4.328-17.131 2.525-22.541-5.591-17.132-25.968-21.099-56.264-10.82l-12.083 4.147 1.082-12.082c1.263-14.246-1.803-22.001-10.279-26.329-7.033-3.607-20.558-3.246-32.099.902zm50.133 69.789c26.869 7.394 43.28 23.624 43.28 42.919 0 21.46-19.116 40.756-50.133 51.035-16.591 5.41-47.428 6.492-62.576 2.344-28.673-8.115-44.903-23.984-44.903-44.362 0-11.181 4.869-20.919 15.509-30.837 9.918-9.377 17.492-13.886 32.099-18.755 22.001-7.393 45.625-8.295 66.724-2.344zm-56.806 17.492c-18.213 8.476-27.951 21.46-27.951 37.69 0 14.788 6.492 24.886 20.738 32.46 11 5.951 31.198 5.41 43.461-.901 15.689-8.296 25.968-23.624 25.968-38.592-.181-12.263-11.001-26.87-23.804-32.099-10.279-4.328-27.592-3.607-38.412 1.442zm13.165 33.903c1.262 1.262 2.164 4.328 2.164 7.033 0 9.017-15.148 16.411-21.28 10.279-3.426-3.426-2.524-11.902 1.443-15.869 3.967-3.968 14.246-4.869 17.673-1.443zm85.298-117.758c-8.296 8.296-2.705 18.214 10.459 18.214 11.361 0 16.41 5.771 16.41 18.755 0 8.115.722 10.459 3.968 12.623 9.738 6.853 17.673-.721 17.673-16.771 0-19.656-14.067-34.444-34.084-35.887-9.016-.721-11.18-.18-14.426 3.066z" fill="rgba( 190, 190, 190, 0.7)"></path></svg></a>
<!--微博的图标结束-->
 
<!--GitHub的图标开始-->
<a href="http://github.com/qzhsjz">
<svg width="24" height="24" viewbox="0 0 16 16"><path fill="#828282" d="M7.999,0.431c-4.285,0-7.76,3.474-7.76,7.761 c0,3.428,2.223,6.337,5.307,7.363c0.388,0.071,0.53-0.168,0.53-0.374c0-0.184-0.007-0.672-0.01-1.32 c-2.159,0.469-2.614-1.04-2.614-1.04c-0.353-0.896-0.862-1.135-0.862-1.135c-0.705-0.481,0.053-0.472,0.053-0.472 c0.779,0.055,1.189,0.8,1.189,0.8c0.692,1.186,1.816,0.843,2.258,0.645c0.071-0.502,0.271-0.843,0.493-1.037 C4.86,11.425,3.049,10.76,3.049,7.786c0-0.847,0.302-1.54,0.799-2.082C3.768,5.507,3.501,4.718,3.924,3.65 c0,0,0.652-0.209,2.134,0.796C6.677,4.273,7.34,4.187,8,4.184c0.659,0.003,1.323,0.089,1.943,0.261 c1.482-1.004,2.132-0.796,2.132-0.796c0.423,1.068,0.157,1.857,0.077,2.054c0.497,0.542,0.798,1.235,0.798,2.082 c0,2.981-1.814,3.637-3.543,3.829c0.279,0.24,0.527,0.713,0.527,1.437c0,1.037-0.01,1.874-0.01,2.129 c0,0.208,0.14,0.449,0.534,0.373c3.081-1.028,5.302-3.935,5.302-7.362C15.76,3.906,12.285,0.431,7.999,0.431z"></path></svg></a>
<!--GitHub的图标结束-->
 
<!--领英的图标开始-->
<a href="http://cn.linkedin.com/in/angeloqin">
<svg version="1.1" id="Capa_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24px" height="24px" viewbox="0 0 18.137 18.135"><path d="M16.28,0H1.854C0.831,0,0,0.83,0,1.855v14.426c0,1.024,0.83,1.854,1.854,1.854H16.28c1.024,0,1.854-0.827,1.854-1.854V1.855
C18.136,0.83,17.306,0,16.28,0z M3.897,2.104c1.003,0,1.815,0.744,1.815,1.66c0,0.914-0.812,1.658-1.815,1.658
S2.082,4.678,2.082,3.764C2.08,2.848,2.895,2.104,3.897,2.104z M5.894,16.033H1.9V6.695h3.994V16.033z M16.036,15.987h-3.033v-4.979
c0-0.989-0.662-1.856-1.722-1.856c-1.061,0-1.448,0.808-1.448,1.565c0,1.021,0,5.271,0,5.271H6.799V6.74h3.034v1.369
c0.439-0.619,1.555-1.398,2.742-1.398c1.479,0,1.783,0.287,2.393,0.895c1.157,1.158,1.049,2.776,1.066,3.269h0.003L16.036,15.987z" fill="rgba( 190, 190, 190, 0.7)"></path></svg></a>
<!--领英的图标结束-->
<br>
<!--发短信按钮部分开始-->
<a href="/sendmesms/">
<svg xmlns="http://www.w3.org/2000/svg" viewbox="0 0 24 20" width="24px" height="24px"><g id="sms"><path d="M20,2H4C2.9,2,2,2.9,2,4l0,18l4-4h14c1.1,0,2-0.9,2-2V4C22,2.9,21.1,2,20,2z M9,11H7V9h2V11z M13,11h-2V9h2V11z M17,11h-2V9h2V11z" fill="rgba( 190, 190, 190, 0.7)"></path></g></svg>给我发送免费短信</a>
<!--发短信按钮部分结束-->
<!--微信二维码-->
</p>
<div id="wxqrcode" style="display:none" align="center">
<strong>微信号：qzhsjz</strong>
<img  src="/wp-content/uploads/2016/05/wechat.jpg" alt="为何WordPress中链接的下划线去不掉？" >
</div>

<p align="center">
<img  src="http://oa.shlcorp.net/img/logo.png" alt="为何WordPress中链接的下划线去不掉？" >
Sparker 成员
<br>
<a href="http://www.sparker.xyz/"><strong>访问Sparker团队主页</strong></a>
</p></code>

即使在CSS里加了!important，显示结果仍然是这样：

我就整不明白了……

回复内容：

在我的主页的侧边栏上，我挂了一些自定义HTML。
但是每当碰到链接的时候，这个链接的下划线怎么也去不掉。现在我整个侧边栏的代码如下：

<code><!--小型样式表-->
<style>
.selfshot {
    border-radius: 50%;
    max-width: 200px;
    max-height: 200px;
    margin-bottom: 20px;
}
.smalltxt {
        font-size:12px;
}
a {
text-decoration: none !important;
}
</style>
<!--各个div的显示与隐藏-->
<script>
function wxstatuschg() {
document.getElementById("wxqrcode").style.display == "none" ? document.getElementById("wxqrcode").style.display = "block" : document.getElementById("wxqrcode").style.display = "none";
}

function emailstatuschg() {
document.getElementById("email").style.display == "none" ? document.getElementById("email").style.display = "block" : document.getElementById("email").style.display = "none";
}
</script>
<!--头像开始-->
<div align="center">
<img src="http://www.sparker.xyz/assets/images/qzh.jpg" alt="头像" class="selfshot" align="center">
<br><strong>秦泽浩</strong>
</div>
<div class="smalltxt" align="center">15级吉林大学唐敖庆理科实验班
<br>
（计算机科学方向）<br>
不瞎想，有耐心，喜欢冷静地分析
<br>
喜欢用coding的思维析构整个世界</div>
<div align="center">
<!--Email图标-->
<a href="javascript:;" onclick="emailstatuschg();">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewbox="0 0 22 16" width="24" height="24">
<g><path style="fill-rule:evenodd;clip-rule:evenodd;" d="M22,0H0v2l11,9l11-9V0z M21,1.36L11,9.646L1,1.36V1h20V1.36z" fill="rgba( 190, 190, 190, 0.7)"></path><polygon style="fill-rule:evenodd;clip-rule:evenodd;" points="22,16 15.49,9 14.594,9.814 19.427,14.922 2.461,14.922 7.396,9.814 6.5,9 0,16 " fill="rgba( 190, 190, 190, 0.7)"></polygon><polygon style="fill-rule:evenodd;clip-rule:evenodd;" points="22,14.396 22,3.451 21,4.149 21,13.488     " fill="rgba( 190, 190, 190, 0.7)"></polygon><polygon style="fill-rule:evenodd;clip-rule:evenodd;" points="0,14.249 1,13.266 1,4.08 0,3.378     " fill="rgba( 190, 190, 190, 0.7)"></polygon>
</g></svg></a>
<!--Email图标结束-->
</div>
<!--email的隐藏div-->
<div id="email" style="display:none" align="center">
<email>cn.a.q@ieee.org</email>
<br>
<email>qzhsjz@gmail.com</email>
<br>
<email>qinzehao@sparker.xyz</email>
<br>
<email>qinzh0115@mails.jlu.edu.cn</email>
</div>
<!--联系方式的p-->
<p align="center">
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即使在CSS里加了!important，显示结果仍然是这样：

我就整不明白了……

审查元素看，其实是 border-bottom