当我悬停在第一个Div上时，工具提示显示得比我悬停在下面两个Div上时更远。显然，这是因为div中的文本更大/更长。但是我不想显示不依赖于悬停文本的工具提示跨度，而是与文本的包含div相关，所以它总是显示在相同的位置。

jQuery不是任何选项，但我认为，这是一个CSS问题。

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.subPhaseContainer {
  float: left;
  margin: 0 auto;
}

.projectItem {
  margin: 4px;
  border: 2px solid black;
  cursor: pointer;
  height: 17px;
}

.projectItem.green {
  background-color: green;
  color: white;
}

.projectNumber {
  position: relative;
  display: inline-block;
  width: 80px;
}

.projectNumber .tooltiptext {
  visibility: hidden;
  width: fit-content;
  text-align: left;
  padding: 5px;
  top: -1px;
  position: absolute;
  z-index: 1;
  margin-left: 34px;
  transition: opacity 0.3s;
  border: 1px solid black;
}

.projectNumber .tooltiptext::after {
  content: "";
  position: absolute;
  top: 20%;
  right: 100%;
  margin-top: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: transparent black transparent transparent;
}

.projectNumber:hover .tooltiptext.green {
  background-color: green;
  color: white;
  visibility: visible;
  opacity: 1;
}

.projectNumber:hover .tooltiptext.yellow {
  background-color: yellow;
  visibility: visible;
  opacity: 1;
}

.projectNumber:hover .tooltiptext.red {
  background-color: red;
  color: white;
  visibility: visible;
  opacity: 1;
}

<div class="subPhaseContainer">
  <div class="projectItem green">
    <div class="projectNumber"><span>AAAA-00</span>
      <span class="tooltiptext green">Tooltip Sample</span>
    </div>
  </div>
  <div class="projectItem green">
    <div class="projectNumber">
      <span>BBB-11</span>
      <span class="tooltiptext green">Tooltip Sample</span>
    </div>
  </div>
  <div class="projectItem green">
    <div class="projectNumber">
      <span>CCC-22</span>
      <span class="tooltiptext green">Tooltip Sample</span>
    </div>
  </div>
</div>

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