Tips for personalizing the CSS styling of input fields based on the id value

Question

Tips for personalizing the CSS styling of input fields based on the id value

I need help finding a way to customize the CSS of form fields (such as input) based on the id value.

Let's take a look at an example:

HTML:

<mat-form-field class="form-field-container">
    <input tabindex="0" id="{{ myVar.name }}" matInput [formControlName]="myVar.name" autocomplete="off"
      [placeholder]="myVar.placeholder" />        
  </mat-form-field>

The current CSS I'm using:

.mat-input-element {
    background: transparent !important;
    color: #000000 !important;
    border: none !important;
    outline: none;
    padding: 0px 0px 5px 0px !important;
    margin: 0 !important;
    width: 100% !important;
    
}
.input.mat-input-element {
    margin-top: 1% !important;
}

My goal is to achieve the following:

If myVar.name = val1, then set width: 30%; in the CSS
If myVar.name = val2, then set width: 20%; in the CSS

I've attempted using selectors, but it hasn't been successful:

input[id="val1"] {
   width: 30%;
}

Appreciate any assistance provided. Thanks!

html css angular forms css-selectors

Answer 1

Answer №1

Both of the other responses provide solutions to your query. One approach involves pre-defining values in CSS, while another utilizes the ngClass selector with an input element. Below is an example from a current project, showcasing how a conditional statement can be used to apply a specific class:

<input type="text"
   [ngClass]="ingredient.drugName == 'DRUG NAME NOT FOUND'
     ? 'text-danger fw-bold' //these classes are applied when the condition is true
     : '<some-other-class>'" //alternate class if the condition is false

For more information, please visit: https://angular.io/api/common/NgClass

Answer 2

Both of the other responses provide solutions to your query. One approach involves pre-defining values in CSS, while another utilizes the ngClass selector with an input element. Below is an example from a current project, showcasing how a conditional statement can be used to apply a specific class:

<input type="text"
   [ngClass]="ingredient.drugName == 'DRUG NAME NOT FOUND'
     ? 'text-danger fw-bold' //these classes are applied when the condition is true
     : '<some-other-class>'" //alternate class if the condition is false

For more information, please visit: https://angular.io/api/common/NgClass

Answer 3

Answer №2

When you are aware of the variable's value, remember to incorporate it in your code as follows:

#variable_1 {
    /* add your custom css styles here */
}

Answer 4

When you are aware of the variable's value, remember to incorporate it in your code as follows:

#variable_1 {
    /* add your custom css styles here */
}

Answer 5

Answer №3

To style different id types, you must define specific CSS rules for each one. For example:

If you want an element with the id "myId1" to have a width of 30%, you should include the following in your .css file:

#myId1 {
    width: 30%;
}

Now, if myVar is set to "myId1", the element will automatically adjust its width to 30%.

Answer 6

To style different id types, you must define specific CSS rules for each one. For example:

If you want an element with the id "myId1" to have a width of 30%, you should include the following in your .css file:

#myId1 {
    width: 30%;
}

Now, if myVar is set to "myId1", the element will automatically adjust its width to 30%.

Answer 7

Answer №4

Both #val1 and input[id="val1"] are valid selectors that will work successfully.

Your CSS is not being applied properly due to cleanliness issues. The specificity of your selector is lacking, as you have disrupted the cascade by using !important.

If you check the styles in your browser’s developer tools, you'll see that the selector matches, but the width property isn't taking effect.

https://i.sstatic.net/dYiWJ.png

In general, class selectors .class and attribute selectors [attr] have equal specificity, so the latter one in the code will override properties of the former one.

However, with !important, the cascade is altered, and width: 100% remains enforced.

Explore CSS Specificity

.mat-input-element {
…
   width: 100% !important; /* this is causing the issue, remove important! */
}

input[id="val1"] {
  width: 30%;
}

Avoid Mixing Data Logic with CSS

It's generally discouraged to style elements based on their ID. Dynamically changing the ID according to data values can lead to messy code.

I support Rich’s suggestion to use conditional classes assignment based on the value. This separates data logic from CSS, enhancing code readability.

<input type="text"
   [ngClass]="ingredient.drugName == 'DRUG NAME NOT FOUND'
     ? 'text-danger fw-bold' //applying these two classes if the condition is true
     : '<some-other-class>'" //choose another class for false condition

Remember to include a label, crucial for accessibility and overall usability.

The context is vague here, but an input should have a border and focus indicator like an outline. Don’t overlook this (:

Answer 8

Both #val1 and input[id="val1"] are valid selectors that will work successfully.

Your CSS is not being applied properly due to cleanliness issues. The specificity of your selector is lacking, as you have disrupted the cascade by using !important.

If you check the styles in your browser’s developer tools, you'll see that the selector matches, but the width property isn't taking effect.

https://i.sstatic.net/dYiWJ.png

In general, class selectors .class and attribute selectors [attr] have equal specificity, so the latter one in the code will override properties of the former one.

However, with !important, the cascade is altered, and width: 100% remains enforced.

Explore CSS Specificity

.mat-input-element {
…
   width: 100% !important; /* this is causing the issue, remove important! */
}

input[id="val1"] {
  width: 30%;
}

Avoid Mixing Data Logic with CSS

It's generally discouraged to style elements based on their ID. Dynamically changing the ID according to data values can lead to messy code.

I support Rich’s suggestion to use conditional classes assignment based on the value. This separates data logic from CSS, enhancing code readability.

<input type="text"
   [ngClass]="ingredient.drugName == 'DRUG NAME NOT FOUND'
     ? 'text-danger fw-bold' //applying these two classes if the condition is true
     : '<some-other-class>'" //choose another class for false condition

Remember to include a label, crucial for accessibility and overall usability.

The context is vague here, but an input should have a border and focus indicator like an outline. Don’t overlook this (:

Tips for personalizing the CSS styling of input fields based on the id value

Answer №1

Answer №2

Answer №3

Answer №4

Avoid Mixing Data Logic with CSS

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