/* 整体中间栏 */
.content_col {
  float: left;
  width: 400px;
  background-color: #ffffff;
  margin-top: 30px;
  margin-left: 420px;
  padding: 30px auto;
}

/* 输入框 */
input {
  width: 100%;
  padding: 12px 20px;
  margin: 8px 0;
  box-sizing: border-box;
  border: 1px solid #555;
  outline: none;
  font: 16px Arial,sans-serif;
}

input:focus {
  background-color: #a3dcff;
}

/* 按钮 */
input[type=submit] {
  width: 200px;
  background-color: #248bcd;
  border: none;
  color: white;
  padding: 12px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-weight:bold;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  -webkit-transition-duration: 0.4s;
  transition-duration: 0.4s;
}

input[type=submit]:hover {
  box-shadow: 0 6px 8px 0 rgba(0,0,0,0.24),0 8px 25px 0 rgba(0,0,0,0.19);
}

/* 中标题文本 */
.txt_table_title {
  float: left;
  width: 100%;
  text-align: center;
  margin: 20px 0px 20px 0px;
  color: #1472aa;
  font: 20px Arial,sans-serif
}

/* 内容文本标题 */
.txt_con_title {
  width: 100%;
  font: 14px Arial,sans-serif;
  color: #272727;
  text-decoration: none;
  text-align: center;
  margin: 20px 0px 20px 0px;
}

/* 内容文本 */
.txt_content {
  width: 100%;
  margin: 20px 0px 20px 0px;
  color: #646464; /*(灰色)*/
  font: 14px Arial,sans-serif;
  line-height:150%;
  text-decoration: none;
  text-align: center;
}