Question

HTML：

   <?php
       require ('Assests/connection/connection.php');
          //iam retriving parent elements only
          $query=mysqli_query($conn,"SELECT * from test where refid=".'0');
          $tab_list='';
          $tab_content='';
           $i=0;
          while($row=mysqli_fetch_array($query)){
          if($i==0) {
           //for the first parent element i am adding class as active
           $tab_list .= '
           <li class="active"><a href="#'.$row["id"].'" data-
            toggle="tab">'.$row["name"].'</a></li>';
            $tab_content .= '
             <div id="'.$row["id"].'" class="tab-pane fade in active">';
          }
          else
              { 
                //for remaining parents adding li class
                $tab_list .= '
                  <li><a href="#'.$row["id"].'" data-
              toggle="tab">'.$row["name"].'</a></li>';
             $tab_content .= '
             <div id="'.$row["id"].'" class="tab-pane fade">';
            }
              //i am passing the retrivedid
              $test_query = "SELECT * FROM test WHERE refid = 
               '".$row["id"]."'";
            $result = mysqli_query($conn, $test_query);

          while($rows = mysqli_fetch_array($result))
         {
           //Adding the checkboxes for child elemens
           $tab_content .=
              "<li class='lichild'><input type='checkbox' 
               name='names[]'value='". 
               $rows['id'] ."'>".$rows['name'];
        }

          $tab_content .= '<div style="clear:both"></div></div>';
          $i++;

    }
   ?>

CSS：

<div class="rectangle">Some text</div>

有没有办法让div在照片中看起来像？

Answer 1

您可以使用::after和::before来获得结果。

.rectangle {
  width: 300px;
  height: 80px;
  border: 5px solid red;
  border-right: none;
  position: relative;
}

/* for the triangular shape */
.rectangle::after {
  content: "";
  position: absolute;
  right:-45px;
  bottom: 0;
  top:-5px;
  width: 0;
  height: 0;
  border-left: 45px solid red;
  border-top: 45px solid transparent;
  border-bottom: 45px solid transparent;
  z-index:1000;
}


/* for hiding the portion except the border 
 of the triangle shape */
.rectangle::before {
  content: "";
  position: absolute;
  right:-40px;
  bottom: 0;
  top:0;
  width: 0;
  height: 0;
  border-left: 40px solid white;
  border-top: 40px solid transparent;
  border-bottom: 40px solid transparent;
  z-index:1001;
}

<div class="rectangle">Some text</div>

如果您不需要类似边框的结构，则可以避免::before部分并将背景颜色设置为主div。

.rectangle {
  width: 300px;
  height: 80px;
  border: 5px solid red;
  border-right: none;
  position: relative;
  background:red;
}

.rectangle::after {
  content: "";
  position: absolute;
  right:-45px;
  bottom: 0;
  top:-5px;
  width: 0;
  height: 0;
  border-left: 45px solid red;
  border-top: 45px solid transparent;
  border-bottom: 45px solid transparent;
}

<div class="rectangle">Some text</div>

有关更多形状，请参阅：CSS Tricks

Answer 2

要仅保留边框而不填充div，您可以尝试使用::before和::after。

这样的事情：

.rectangle {
   width: 200px;
   height: 40px;
   position: relative;
   border-top: 2px solid red;
   border-bottom: 2px solid red;
   border-left: 2px solid red;
   -moz-border-radius: 3px 0 0 3px;
   -webkit-border-radius: 3px 0 0 3px;
   border-radius: 3px 0 0 3px;
   margin-left: 50px;
}
.rectangle::after {
   content: "";
   position: absolute;
   left: 100%;
   width: 0;
   height: 0;
   top: 2px;
   border-top: 18px solid transparent;
   border-left: 10px solid #fff;
   border-bottom: 17px solid transparent;
}
.rectangle::before {
   content: "";
   position: absolute;
   left: 100%;
   width: 0;
   top: -2px;
   height: 0;
   border-top: 22px solid transparent;
   border-left: 14px solid red;
   border-bottom: 22px solid transparent;
}

<div class="rectangle">Some text</div>

Answer 3

通过声明transform: rotate()属性值来考虑转动伪元素，如下面嵌入的代码段所示。

作为实现声明border属性规则的相同行为的替代方法，此方法允许仅使用一个伪元素以直观方式在元素上声明边框。

以这种方式旋转元素还可以选择用纯色填充元素 - 让您可以更自由地进行自定义。

代码段示范：

＆＃13;

.rectangle {
    width: 300px;
    height: 80px;
    border: 5px solid red;
    /* additional */
    border-right: 0;
    box-sizing: border-box;
    position: relative; /* required */
}

/* Additional */
.rectangle:after {
    content: "";
    position: absolute;
    width: 55px;
    height: 55px;
    border-right: 5px solid red;
    border-top: 5px solid red;
    box-sizing: inherit;
    right: -28px;
    top: 7px;
    transform: rotate(45deg);
}

＆＃13;

<div class="rectangle">Some text</div>

＆＃13;

Answer 4

你必须使用伪类after

.rectangle {
    position: relative;
    width:200px;
    height:40px;
    margin-left:40px;
    color:#FFFFFF;
    background-color:red;
    text-align:center;
    line-height:40px;
}
.rectangle:after {
    content:"";
    position: absolute;
    left: 100%;
    top:0px;
    width:0px;
    height:0px;
    border-top:20px solid transparent;
    border-left:40px solid red;
    border-bottom:20px solid transparent;
}

<div class="rectangle">Some text</div>

Answer 5

检查CSS Shapes

＆＃13;

#pointer {
  width: 200px;
  height: 40px;
  position: relative;
  background: red;
}

#pointer:after {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 0;
  border-left: 20px solid white;
  border-top: 20px solid transparent;
  border-bottom: 20px solid transparent;
}

#pointer:before {
  content: "";
  position: absolute;
  right: -20px;
  bottom: 0;
  width: 0;
  height: 0;
  border-left: 20px solid red;
  border-top: 20px solid transparent;
  border-bottom: 20px solid transparent;
}

＆＃13;

<div id="pointer">


</div>

＆＃13;

Answer 6

您可以使用:before和:after

执行此操作

＆＃13;

.rectangle {
    width: 300px;
    height: 80px;
    border: 5px solid blue;
    border-right: none;
    position: relative;
}
.rectangle::before {
    content: '';
    border-top: 5px solid blue;
    width: 120px;
    position: absolute;
    right: -115px;
    bottom: 16px;
    transform: rotate(-21deg);
}
.rectangle::after {
    content: '';
    border-top: 5px solid blue;
    width: 120px;
    position: absolute;
    right: -115px;
    top: 16px;
    transform: rotate(21deg);
}

＆＃13;

<div class="rectangle">Some text</div>

＆＃13;

如何使矩形边框不同？

6 个答案: